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String-Funktionen

<<strpbrk

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strpos

(PHP 4, PHP 5)

strposSucht das erste Vorkommen des Suchstrings

Beschreibung

int strpos ( string $haystack , mixed $needle [, int $offset = 0 ] )

Gibt die numerische Position des ersten Vorkommens von needle innerhalb der Zeichenkette haystack zurück. Anders als strrpos() vor PHP 5 akzeptiert diese Funktion eine komplette Zeichenkette als needle-Parameter und verwendet den gesamten String zur Suche.

Parameter-Liste

haystack

Die Zeichenkette, in der gesucht werden soll.

needle

Ist needle kein String, wird der Parameter in einen Integerwert konvertiert, der dem Ordinalwert des Zeichens entspricht.

offset

Der optionale Parameter offset ermöglicht es Ihnen, die Startposition für die Suche innerhalb von haystack anzugeben. Die zurück gegebene Positions-Angabe ist dann relativ zum Anfang von haystack.

Rückgabewerte

Gibt die Position als Integerwert zurück. Wurde needle nicht gefunden, gibt strpos() den boolean-Wert FALSE zurück.

Warnung

Diese Funktion kann sowohl das boolsche FALSE zurückliefern, als auch einen nicht-boolschen Wert, wie zum Beispiel 0 oder "", der von einem einfachen if-Statement als FALSE ausgewertet wird. Weitere Informationen entnehmen Sie bitte dem Abschnitt über die boolschen Typen. Benutzen Sie deshalb den === Operator, um den Rückgabewert dieser Funktion zu überprüfen.

Beispiele

Beispiel #1 Verwendung von ===

<?php
$meinString 
'abc';
$findMich   'a';
$pos strpos($meinString$findMich);

// Beachten Sie die Verwendung von ===. Ein einfacher Vergleich (==) liefert
// nicht das erwartete Ergebnis, da die Position von 'a' die nullte Stelle
// (also das erste Zeichen) ist
if ($pos === false) {
    echo 
"Der String '$findMich' wurde nicht im String '$meinString' gefunden";
} else {
    echo 
"Der String '$findMich' wurde im String '$meinString' gefunden";
    echo 
" und befindet sich an Position $pos";
}
?>

Beispiel #2 Verwendung von !==

<?php
$meinString 
'abc';
$findMich   'a';
$pos strpos($meinString$findMich);

// Der !==-Operator kann ebenfalls verwendet werden. Die Verwendung von != von
// != würde in unserem Beispiel nicht wie erwartet arbeiten, da die Position
// von 'a' 0 ist. Das Statement (0 != false) evaluiert hierbei zu false.
if ($pos !== false) {
    echo 
"Der String '$findMich' wurde im String '$meinString' gefunden";
    echo 
" und befindet sich an Position $pos";
} else {
    echo 
"Der String '$findMich' wurde nicht im String '$meinString' gefunden";
}
?>

Beispiel #3 Verwendung eines Offsets

<?php
// Wir koennen nach einem Zeichen suchen und dabei alles vor dem Offset ignorieren
$newstring 'abcdef abcdef';
$pos strpos($newstring'a'1); // $pos = 7, nicht 0
?>

Anmerkungen

Hinweis: Diese Funktion ist binary safe.

Siehe auch

  • strrpos() - Findet das letzte Vorkommen eines Zeichens innerhalb einer Zeichenkette
  • stripos() - Findet das erste Vorkommen eines Strings, unabhängig von Groß- und Kleinschreibung
  • strripos() - Findet das letzte Vorkommen der gesuchten Zeichenkette in einem String, unabhängig von Groß- und Kleinschreibung
  • strrchr() - Sucht das letzte Vorkommen eines Zeichens in einem String
  • substr() - Gibt einen Teil eines Strings zurück
  • stristr() - Wie strstr, aber unabhängig von Groß- bzw. Kleinschreibung
  • strstr() - Findet das erste Vorkommen eines Strings


57 BenutzerBeiträge:
- Beiträge aktualisieren...
Anonymous
19.08.2010 11:50
beware the mindless "if needle is not string" :

root@voice1:/www/voice_ed#php -r 'var_dump(strpos("X1234567",5));'
bool(false)
root@voice1:/www/voice_ed#php -r 'var_dump(strpos("X1234567","5"));'
int(5)
root@voice1:/www/voice_ed#
gambajaja at yahoo dot com
18.08.2010 0:25
<?php
$my_array
= array ('100,101', '200,201', '300,301');
$check_me_in = array ('100','200','300','400');
foreach (
$check_me_in as $value_cmi){
   
$is_in=FALSE; #asume that $check_me_in isn't in $my_array
   
foreach ($my_array as $value_my){
       
$pos = strpos($value_my, $value_cmi);
        if (
$pos===0)
           
$pos++;
        if (
$pos==TRUE){
           
$is_in=TRUE;
           
$value_my2=$value_my;
            }
    }
    if (
$is_in) echo "ID $value_cmi in \$check_me_in I found in value '$value_my2' \n";
}
?>

The above example will output
ID 100 in $check_me_in I found in value '100,101'
ID 200 in $check_me_in I found in value '200,201'
ID 300 in $check_me_in I found in value '300,301'
usulaco at gmail dot com
11.08.2010 14:04
Parse strings between two others in to array.

<?php
function g($string,$start,$end){
    
preg_match_all('/' . preg_quote($start, '/') . '(.*?)'. preg_quote($end, '/').'/i', $string, $m);
    
$out = array();

     foreach(
$m[1] as $key => $value){
      
$type = explode('::',$value);
       if(
sizeof($type)>1){
          if(!
is_array($out[$type[0]]))
            
$out[$type[0]] = array();
         
$out[$type[0]][] = $type[1];
       } else {
         
$out[] = $value;
       }
     }
  return
$out;
}
print_r(g('Sample text, [/text to extract/] Rest of sample text [/WEB::http://google.com/] bla bla bla. ','[/','/]'));
?>

results:
Array
(
    [0] => text to extract
    [WEB] => Array
        (
            [0] => http://google.com
        )

)

Can be helpfull to custom parsing :)
james [at] bandit co.nz
28.05.2010 13:38
strpos that accepts an array for $needle

<?php
// strpos that takes an array of values to match against a string
// note the stupid argument order (to match strpos)
function strpos_arr($haystack, $needle) {
    if(!
is_array($needle)) $needle = array($needle);
    foreach(
$needle as $what) {
        if((
$pos = strpos($haystack, $what))!==false) return $pos;
    }
    return
false;
}
?>
olmstead31 at yahoo dot com
23.03.2010 16:48
I found that whatever I was using as a test with strpos it came out false exept if $pos was == 1

I figured it gives me a numeric value if found else it is null or false
here is what i did to make my code work:

<?php
//EXAMPLE 1:
$quiamime = ',64,68,70,';
$me = '64'
$posi = strpos($quiaime, ",$me,");  //posi is equal to 0
if (!is_numeric($posi)){
 
//code here
}else{
 
//else code here
}

//EXAMPLE 2:
$quiamime = ',68,70,64,';
$me = '64'
$posi = strpos($quiaime, ",$me,");  //posi is equal to 6
if (!is_numeric($posi)){
 
//code here
}else{
 
//else code here
}

//EXAMPLE 3:
$quiamime = ',68,70,';
$me = '64'
$posi = strpos($quiaime, ",$me,");  //posi is equal to NULL or FALSE
if (!is_numeric($posi)){
 
//code here
}else{
 
//else code here
}
?>
jaimthorn at yahoo dot com
5.03.2010 20:55
restaurant.nl may find it bizarre, but I prefer this implementation of strnpos because it doesn't give visible warnings when supplied with a needle of length 0 (which is, admittedly, non-standard behavior), AND it's faster...

<?php
/**
 *  Returns the position of the $nth occurrence of $needle in $haystack, or false if it doesn't exist, or false when illegal parameters have been supplied.
 *
 *  @param  string  $haystack   the string to search in.
 *  @param  string  $needle     the string to search for.
 *  @param  integer $nth        the number of the occurrence to look for.
 *  @param  integer $offset     the position in $haystack to start looking for $needle.
 *  @return MIXED   integer     either the position of the $nth occurrence of $needle in $haystack,
 *               or boolean     false if it can't be found.
 */
function strnpos( $haystack, $needle, $nth, $offset = 0 )
{
   if(
1 > $nth || 0 === strlen( $needle ) )
   {
       return
false;
   }

  
//  $offset is incremented in the call to strpos, so make sure that the first call starts at the right position by initially decrementing $offset.
  
--$offset;
   do
   {
     
$offset = strpos( $haystack, $needle, ++ $offset );
   } while( --
$nth  && false !== $offset );

   return
$offset;
}
?>
http://restaurants.nl
3.03.2010 17:50
I've seen some awful and even outright bizarre examples for finding the nth occurrence of needle inside haystack starting at a given offset,
so here's what I believe is a better one:

<?php
function strnpos($haystack, $needle, $nth, $offset = 0)
{
    for (
$retOffs=$offset-1; ($nth>0)&&($retOffs!==FALSE); $nth--) $retOffs = strpos($haystack, $needle, $retOffs+1);
    return
$retOffs;
}

echo
strnpos("who's your daddy, daddy?", "d", 1);    // 11
echo strnpos("who's your daddy, daddy?", "d", 3);    // 14
echo strnpos("who's your daddy, daddy?", "d", 2, 14);    // 18
echo strnpos("who's your daddy, daddy?", "daddy", 2);    // 18
?>

enjoy
daevid at daevid dot com
26.01.2010 23:46
Dan Brown and I had a discussion on the PHP list about the speed difference between the popular three string searching techniques. He wrote a simple timing test, and I adapted it further. The end result is that all three are very close and not even noticeable for sets < 1M. Although, technically strpos() is about twice as fast (as the docs allude to above). Here it is for your own amusement and testing purposes.

<?php
for ($i = 0; $i < 1000000; $i++ )
   
$o[] =
sprintf('%04d-%02d-%02d',rand(0000,9999),rand(00,99),rand(00,99));
#print_r($o);
echo "array of ".number_format($i)."\n";
###################################################################
$now = microtime(true);
for(
$i=0;$i<count($o);$i++) {
       if(
preg_match('/^[0]{4,}\-/U',$o[$i])) {
              
//echo "Offset #".$i." matches: ".$o[$i].PHP_EOL;
      
}
}
$rank['preg_match'] = (microtime(true) - $now);
###################################################################
$later = microtime(true);
for(
$i=0;$i<count($o);$i++) {
        if(
substr($o[$i],0,4) == "0000") {
               
//echo "Offset #".$i." matches: ".$o[$i].PHP_EOL;
       
}
}
$rank['substr'] = (microtime(true) - $later);
###################################################################
$after = microtime(true);
for(
$i=0;$i<count($o);$i++) {
        if(
strpos($o[$i], '0000') === 0) {
               
//echo "Offset #".$i." matches: ".$o[$i].PHP_EOL;
       
}
}
$rank['strpos'] = (microtime(true) - $after);
###################################################################
asort($rank);
print_r($rank);
?>

array of 10,000
Array
(
    [strpos] => 0.00766682624817
    [substr] => 0.0116670131683
    [preg_match] => 0.0124950408936
)

array of 100,000
Array
(
    [strpos] => 0.0817799568176
    [substr] => 0.120522975922
    [preg_match] => 0.125612974167
)

array of 1,000,000
Array
(
    [strpos] => 0.805890083313
    [substr] => 1.19799995422
    [preg_match] => 1.25615906715
)

I ran out of memory with more than 1M array elements.
Achintya
6.11.2009 23:03
A function I made to find the first occurrence of a particular needle not enclosed in quotes(single or double). Works for simple nesting (no backslashed nesting allowed).

<?php
function strposq($haystack, $needle, $offset = 0){
   
$len = strlen($haystack);
   
$charlen = strlen($needle);
   
$flag1 = false;
   
$flag2 = false;
    for(
$i = $offset; $i < $len; $i++){
        if(
substr($haystack, $i, 1) == "'"){
           
$flag1 = !$flag1 && !$flag2 ? true : false;
        }
        if(
substr($haystack, $i, 1) == '"'){
           
$flag2 = !$flag1 && !$flag2 ? true : false;
        }
        if(
substr($haystack, $i, $charlen) == $needle && !$flag1 && !$flag2){
            return
$i;       
        }
    }
    return
false;
}

echo
strposq("he'llo'character;\"'som\"e;crap", ";"); //16
?>
yasindagli at gmail dot com
5.10.2009 18:05
This function finds postion of nth occurence of a letter starting from offset.

<?php
function nth_position($str, $letter, $n, $offset = 0){
   
$str_arr = str_split($str);
   
$letter_size = array_count_values(str_split(substr($str, $offset)));
    if( !isset(
$letter_size[$letter])){
       
trigger_error('letter "' . $letter . '" does not exist in ' . $str . ' after ' . $offset . '. position', E_USER_WARNING);
        return
false;
    } else if(
$letter_size[$letter] < $n) {
       
trigger_error('letter "' . $letter . '" does not exist ' . $n .' times in ' . $str . ' after ' . $offset . '. position', E_USER_WARNING);
        return
false;
    }
    for(
$i = $offset, $x = 0, $count = (count($str_arr) - $offset); $i < $count, $x != $n; $i++){
        if(
$str_arr[$i] == $letter){
           
$x++;
        }
    }
    return
$i - 1;
}

echo
nth_position('foobarbaz', 'a', 2); //7
echo nth_position('foobarbaz', 'b', 1, 4); //6
?>
digitalpbk [at] gmail.com
1.10.2009 5:37
This functions throws an "Offset not contained in string" error if the offset is not in between 0 and the length of string.
KimKha
29.09.2009 10:56
The following function use to redirect to URL correctly if the URL have "http://" or "https://", or to relative URL on your site.

<?php
function forward($url = NULL){
   
$root = "http://example.com/mydir/";
   
    if(
$url == NULL) // Go to homepage
       
$url = $root;
    else {
       
$pos = strpos($url, "http://");
        if (
$pos === false)
           
$pos = strpos($url, "https://");
       
        if (
$pos === false || $pos > 0) // Go to relative URL on your site
           
$url = $root . $url;
    }
   
   
header('Location:'.$url);   
}
?>
juniordez at gmail dot com
16.09.2009 18:47
Function to get the string pos ($search), before the position ($pos) passed as parameter.

<?php

function strposReverse( $str, $search, $pos ){
       
$str = strrev($str);
       
$search = strrev($search);
       
$pos = (strlen($str) - 1) - $pos;
       
       
$posRev = strpos( $str, $search, $pos );
        return (
strlen($str) - 1) - $posRev - (strlen($search) - 1);
    }
?>
ah dot d at hotmail dot com
11.08.2009 22:29
A strpos modification to return an array of all the positions of a needle in the haystack

<?php
function strallpos($haystack,$needle,$offset = 0){
   
$result = array();
    for(
$i = $offset; $i<strlen($haystack); $i++){
       
$pos = strpos($haystack,$needle,$i);
        if(
$pos !== FALSE){
           
$offset $pos;
            if(
$offset >= $i){
               
$i = $offset;
               
$result[] = $offset;
            }
        }
    }
    return
$result;
}
?>

example:-

<?php
$haystack
= "ASD is trying to get out of the ASDs cube but the other ASDs told him that his behavior will destroy the ASDs world";

$needle = "ASD";

print_r(strallpos($haystack,$needle));

//getting all the positions starting from a specified position

print_r(strallpos($haystack,$needle,34));
?>
bob at mailinator dot com
3.06.2009 20:26
I found in a certain bit of my code that under certain circumstances, $needle could be an empty string. This caused strpos to generate an error message.
To get round it, I had to first test to see if $needle was an empty string, and then (ie 'else') go forward and do the strpos test if not.
vbracco at gmail dot com
4.04.2009 16:45
This function find position of first occurrence of any $needles in a string $haystack.
Return the position as an integer. If needles is not found, strposa() will return boolean  FALSE.

<?php
function strposa($haystack ,$needles=array(),$offset=0){
   
$chr = array();
    foreach(
$needles as $needle){
       
$chr[] = strpos($haystack,$needle,$offset);
    }
    if(empty(
$chr)) return false;
    return
min($chr);
}

$string = "This is my string, very simple.";

echo
strposa($string,array(".",","," ")); // 2
echo strposa($string,array("T")); // 0
echo strposa($string,array("Q","W")); // false
?>
lkj dot korn AT NOSPAMgmail d0t c0m
3.04.2009 22:57
Note that strpos() will return false if you supply an integer (thus, this presumably applies to float, too) as needle. For example:

<?php
$id
= 2; $text = '12345';
if(
strpos($text, $id) === false){
  echo
'Yes, is false';
}
?>

Will output 'Yes, is false', a behavior which may not be very intuitive (you'd think it would be covered by PHP's type juggling feature).
This can be easily fixed by adding $id = (string)$id; above the strpos() statement.
teddanzig at yahoo dot com
23.03.2009 18:48
routine to return -1 if there is no match for strpos

<?php
//instr function to mimic vb instr fucntion
function InStr($haystack, $needle)
{
   
$pos=strpos($haystack, $needle);
    if (
$pos !== false)
    {
        return
$pos;
    }
    else
    {
        return -
1;
    }
}
?>
peterzuzek at gmail dot com
8.02.2009 20:01
A function that return the first occurance of a number in a string, if anyone needs it.

Translation/prevod:
Funkcija, ki vrača pozicijo prve številke v besedi, če jo kdo potrebuje.

<?php

   
function firstNumPos($str) {
       
$poses = array(); // will be storing positions of the numbers

       
for($i = 0; $i < 10; ++$i) { // cycle through numbers
           
if(($a = strpos($str, (string)$i)) !== false) {
               
$poses[] = $a;    // append the position of
                                // the first occurance of the number
           
}
        }
        if(isset(
$poses[0])) { // if array not empty
           
sort($poses);        // sort to get the lowest one on the 'bottom'
           
return $poses[0];    // and return it
       
}
        return
false; // otherwise return false

   
} // firstNumPos()

?>
jburns131 at jbwebware dot com
28.12.2008 1:48
The Situation:

I wanted to return TRUE if strpos returned position 0, and only position 0, without the added overhead of preg_match.

The Solution:

As PHP treats 0 (zero) as NULL, and strpos returns the int 0 (but not NULL), I used type casting and the "===" comparison operator (as it compares types) to resolve my issue.

<?php

$hayStack
= "dbHost";
$needle  = "db"
$needlePos = strpos($hayStack, $needle);

if((string)
$needlePos === (string)0) {
    echo
"db is in position zero";
} else {
    echo
"db is NOT in position zero";
}

?>

Returns:
db is in position zero

<?php

$hayStack
= "another_db_host";
$needle  = "db"
$needlePos = strpos($hayStack, $needle);

if((string)
$needlePos === (string)0) {
    echo
"db is in position zero";
} else {
    echo
"db is NOT in position zero";
}

?>

This returns:
db is in NOT position zero
Tim
18.11.2008 2:52
If you would like to find all occurences of a needle inside a haystack you could use this function strposall($haystack,$needle);. It will return an array with all the strpos's.

<?php
/**
 * strposall
 *
 * Find all occurrences of a needle in a haystack
 *
 * @param string $haystack
 * @param string $needle
 * @return array or false
 */
function strposall($haystack,$needle){
   
   
$s=0;
   
$i=0;
   
    while (
is_integer($i)){
       
       
$i = strpos($haystack,$needle,$s);
       
        if (
is_integer($i)) {
           
$aStrPos[] = $i;
           
$s = $i+strlen($needle);
        }
    }
    if (isset(
$aStrPos)) {
        return
$aStrPos;
    }
    else {
        return
false;
    }
}
?>
atomkirk at hotmail dot com
23.10.2008 3:19
careful that when you put a strpos in an if statement that you take note that if the string is in the 0 position it will return false, causing your control structure to think its not in the string.
samundra dot shr at gmail dot com
28.09.2008 8:40
This is the code,I wrote today, I wanted to strip all the newlines, and format the output in a single line so as to lower the filesize of my php source files.

<?php
/****************************************
@ Code By : Samundra Shrestha
@ Dated : September 28,2008
P.S. Remember to remove all single line comments from the source file
        otherwise the file may get corrupted.
******************************************/
if(!isset($_POST['change']) || !isset($_POST['filename']))
{
    print
"<b>".strtoupper("Paste the fullpath of the file")."</b>";
    print
"<form name='FrmChange' method='post' action='".$_SERVER['PHP_SELF']."'>";
    print
"<input type='textbox' name='filename' size='50px' maxlength='255'>";
    print
"<input type='submit' name='change' value='Start'>";
    print
"</form>";
}
else
{
$filename=$_POST['filename'];
if(!
$fpin=@fopen($filename,"r"))
{
    print
"<b>Error ! File Doesn't Exists</b>";
    exit();
}
$text="";
$i=0;
/*Put the contents of file into the string*/
while(!feof($fpin))
{
   
$text.=fread($fpin,1024);
}
$count=strlen($text);
$pos=strpos($text,"\n"); //Gives the First occurence of newline
while($i<$count)
{   
    if(
$i<$pos-1)
    {
       
$newtext.=$text{$i}; //C Style of String Indexing       
   
}
    else
    {
       
$pos=strpos($text,"\n",$i+1);
    }   
   
$i++;   
}
$newtext.="?>";   //necessary as somehow it is removed from the original source file.
$fp=fopen("sample.txt","wb+");
fwrite($fp,$newtext);
fclose($fp);   
print
"File Changed Successfully.";
}
?>

The resultant code is all in one new line saved in file sample.txt

I hope, this comes handy to someone.

Cheers,
Samundra Shrestha
http://www.samundra.com.np
mickRacky
19.09.2008 20:17
here's a php implementation of stdc++ string class find_first_of using strpos.

<?php
function find_first_of($haystack, $needlesAsString, $offset=0)
{
 
$max = strlen($needlesAsString);
 
$index = strlen($haystack)+1;
  for(
$ii=0; $ii<$max;$ii++){
   
$result = strpos($haystack,$needlesAsString[$ii], $offset);
    if(
$result !== FALSE  && $result < $index)
     
$index = $result;
  }
  return (
$index > strlen($haystack)? FALSE: $index);
}
?>

Example:
<?php
$test
="Ralph: One of these days, Alice!!";
$look_for=":!,";   // punctuation marks

$ss = 0;
while(
$answer=find_first_of($test,$look_for,$ss) ) {
  echo
$answer . "\n";
 
$ss = $answer+1;
 }
?>

This prints out:
5
24
31
32
Chuzasoft Inc. ARGENTINA
5.08.2008 21:16
Hi! Don't you people miss the pretty comparison operator 'LIKE' from mySql in PHP??.
I've made this funtion to emulate that method. It's for search a match string into another String
using the '%' caracter just like you do un the LIKE syntax.
For example:

<?php
$mystring
= "Hi, this is good!";
$searchthis = "%thi% goo%";

$resp = milike($mystring,$searchthis);

       
if (
$resp){
   echo
"milike = VERDADERO";
} else{
   echo
"milike = FALSO";
}

?>
Will print:
milike = VERDADERO

and so on...

this is the function:

<?php
function milike($cadena,$busca){
    if(
$busca=="") return 1;
   
   
$vi = split("%",$busca);
    
$offset=0;
    for(
$n=0;$n<count($vi);$n++){
        if(
$vi[$n]== ""){
            if(
$vi[0]== ""){
                  
$tieneini = 1;
            }
        } else {
           
$newoff=strpos($cadena,$vi[$n],$offset);
            if(
$newoff!==false){
                if(!
$tieneini){
                    if(
$offset!=$newoff){
                        return
false;
                    }
                }
                if(
$n==count($vi)-1){
                    if(
$vi[$n] != substr($cadena,strlen($cadena)-strlen($vi[$n]), strlen($vi[$n]))){
                        return
false;
                    }

                } else {
                   
$offset = $newoff + strlen($vi[$n]);
                 }
            } else {
                return
false;
            }
        }
    }
    return
true;
}
?>

Good luck!
paul at thiswayupdesign dot co dot uk
18.06.2008 12:48
I wasn't aware of the !== operator, only the === for false. I was using this code on strpos:

<?php
while( ! ($start=@strpos($source,$startTag,$end)) === false) {
 
// ...
}
?>

This gave a false if the string was found at position 0, which is weird.

However using

<?php
while(($start=@strpos($source,$startTag,$end)) !== false) {
 
// ...
}
?>

Gives no such error and seems to work correctly
pawhox
26.05.2008 15:19
Hello! I was founding a function, which finds any occurence of a string (no: first occurence). I wasn't, so I maked this function! It may be very useful.

<?php

int strnpos
(string $haystack, mixed $needle, int $occurence);

?>

Example:

<?php

strnpos
("I like the bananas. You like coke. We like chocolate.", "like", 2); // 24

?>

Here's code of this function:

<?php

function strnpos($base, $str, $n)
    {       
        if (
$n <= 0 || intval($n) != $n || substr_count($base, $str) < $n)  return FALSE;
       
       
$str = strval($str);
       
$len = 0;
       
        for (
$i=0 ; $i<$n-1 ; ++$i)
        {
            if (
strpos($base, $str) === FALSE ) return FALSE;
           
           
$len += strlen( substr($base, 0, strpos($base, $str) + strlen($str)) );
           
           
$base = substr($base, strpos($base, $str) + strlen($str) );
        }
        return
strpos($base, $str) + $len;
    }

?>
ilaymyhat-rem0ve at yahoo dot com
2.04.2008 2:17
This might be useful.

<?php
class String{
   
   
//Look for a $needle in $haystack in any position
   
public static function contains(&$haystack, &$needle, &$offset)
    {
       
$result = strpos($haystack, $needle, $offset);
        return
$result !== FALSE;
    }
   
   
//intuitive implementation .. if not found returns -1.
   
public static function strpos(&$haystack, &$needle, &$offset)
    {
       
$result = strpos($haystack, $needle, $offset);
        if (
$result === FALSE )
        {
            return -
1;
        }
        return
$result;
    }
   
}
//String
?>
Suggested re-write for pink WARNING box
12.01.2008 0:45
WARNING

As strpos may return either FALSE (substring absent) or 0 (substring at start of string), strict versus loose equivalency operators must be used very carefully.

To know that a substring is absent, you must use: 

=== FALSE

To know that a substring is present (in any position including 0), you can use either of:

!== FALSE  (recommended)
 > -1  (note: or greater than any negative number)

To know that a substring is at the start of the string, you must use: 

=== 0

To know that a substring is in any position other than the start, you can use any of:

 > 0  (recommended)
!= 0  (note: but not !== 0 which also equates to FALSE)
!= FALSE  (disrecommended as highly confusing)

Also note that you cannot compare a value of "" to the returned value of strpos. With a loose equivalence operator (== or !=) it will return results which don't distinguish between the substring's presence versus position. With a strict equivalence operator (=== or !==) it will always return false.
giulioNOSPAM at iunknown dot org
31.10.2007 11:19
A further implementation of the great rstrpos function posted in this page. Missing some parameters controls, but the core seems correct.

<?php
// Parameters:
//
// haystack : target string
// needle   : string to search
// offset   : which character in haystack to start searching, FROM THE END OF haystack
// iNumOccurrence : how many needle to search into haystack beginning from offset ( i.e. the 4th occurrence of xxx into yyy )

function rstrpos ($haystack, $needle, $offset=0, $iNumOccurrence=1)
  {
 
//
 
$size = strlen ($haystack);
 
$iFrom = $offset;
 
$iLoop = 0;
 
//
 
do
    {
   
$pos = strpos (strrev($haystack), strrev($needle), $iFrom);
   
$iFrom = $pos + strlen($needle);
    }
  while ((++
$iLoop)<$iNumOccurrence);
 
//
 
if($pos === false) return false;
 
//
 
return $size - $pos - strlen($needle);
  }
?>
Benjie
14.10.2007 13:49
str_replace evaluates its arguments exactly once.

for example:

<?php
$page
= str_replace("##randompicture##", getrandompicture(), $page);
?>

will call getrandompicture() once, ie it will insert the same random picture for each occurrence of ##randompicture## :(

Here is my quick and dirty workaround:

<?php
function add_random_pictures($text) {

  while ((
$i = strpos($text, "##randompicture##")) !== false) {
   
$text = substr_replace($text, getrandompicture(), $i, strlen("##randompicture##"));
  }
  return
$text;

}

$page = add_random_pictures($page);
?>
Wagner Christian
17.08.2007 10:11
If you plan to use an integer as needle you need first to convert your integer into a String else it's not going to work.

For exemple :
<?php
$id 
= 1;
$my_text = "hel124lo";
$first_position =strpos($my_text ,substr($id,0));
?>

There are for sure some another solutions to convert an integer into a string in php.
user at nomail dot com
15.05.2007 11:21
This is a bit more useful when scanning a large string for all occurances between 'tags'.

<?php
function getStrsBetween($s,$s1,$s2=false,$offset=0) {
   
/*====================================================================
    Function to scan a string for items encapsulated within a pair of tags

    getStrsBetween(string, tag1, <tag2>, <offset>

    If no second tag is specified, then match between identical tags

    Returns an array indexed with the encapsulated text, which is in turn
    a sub-array, containing the position of each item.

    Notes:
    strpos($needle,$haystack,$offset)
    substr($string,$start,$length)

    ====================================================================*/

   
if( $s2 === false ) { $s2 = $s1; }
   
$result = array();
   
$L1 = strlen($s1);
   
$L2 = strlen($s2);

    if(
$L1==0 || $L2==0 ) {
        return
false;
    }

    do {
       
$pos1 = strpos($s,$s1,$offset);

        if(
$pos1 !== false ) {
           
$pos1 += $L1;

           
$pos2 = strpos($s,$s2,$pos1);

            if(
$pos2 !== false ) {
               
$key_len = $pos2 - $pos1;

               
$this_key = substr($s,$pos1,$key_len);

                if( !
array_key_exists($this_key,$result) ) {
                   
$result[$this_key] = array();
                }

               
$result[$this_key][] = $pos1;

               
$offset = $pos2 + $L2;
            } else {
               
$pos1 = false;
            }
        }
    } while(
$pos1 !== false );

    return
$result;
}
?>
Rich Deeson
26.04.2007 17:58
Here's a somewhat more efficient way to truncate a string at the end of a word. This will end the string on the last dot or last space, whichever is closer to the cut off point. In some cases, a full stop may not be followed by a space eg when followed by a HTML tag.

<?php
    $shortstring
= substr($originalstring, 0, 400);
   
$lastdot = strrpos($shortstring, ".");
   
$lastspace = strrpos($shortstring, " ");
   
$shortstring = substr($shortstring, 0, ($lastdot > $lastspace? $lastdot : $lastspace));
?>

Obviously, if you only want to split on a space, you can simplify this:

<?php
    $shortstring
= substr($originalstring, 0, 400);
   
$shortstring = substr($shortstring, 0, strrpos($shortstring, " "));
?>
sinai [at] simnet [dot] is
11.04.2007 14:35
If you want to check for either IE6 or 7 individually.

<?php

function browserIE($version)
{
  if(
$version == 6 || $version == 7)
  {
   
$browser = strpos($_SERVER['HTTP_USER_AGENT'], "MSIE ".$version.".0;");
          
    if(
$browser == true)
    {
      return
true;
    }
    else
    {
      return
false;
    }
  else
  {
    return
false;
}

?>
gal_chen123 at hotmail dot co dot il
3.04.2007 18:57
this function returns the text between 2 strings:

<?php
function get_between ($text, $s1, $s2) {
   
$mid_url = "";
   
$pos_s = strpos($text,$s1);
   
$pos_e = strpos($text,$s2);
    for (
$i=$pos_s+strlen($s1) ; ( ( $i < ($pos_e)) && $i < strlen($text) ) ; $i++ ) {
       
$mid_url .= $text[$i];
    }
    return
$mid_url;
}
?>

if $s1 or $s2 are not found, $mid_url will be empty
to add an offset, simply compare $pos_s to the offset, and only let it continue if the offset is smaller then $pos_s.
jamie at jamiechong dot ca
19.01.2007 21:15
Try this function to find the first position of needle before a given offset.

For example:
<?php
$s
= "This is a test a is This";
$offset = strpos($s, "test");

strnpos($s, "is", $offset);  // returns 17
strnpos($s, "is", -$offset); // returns 5

// Works just like strpos if $offset is positive.
// If $offset is negative, return the first position of needle
// before before $offset.
function strnpos($haystack, $needle, $offset=0)
{
    if (
$offset>=0)
       
$result=strpos($haystack, $needle, $offset);
    else
    {
       
$offset=strlen($haystack)+$offset;
       
$haystack=strrev($haystack);
       
$needle=strrev($needle);
       
$result=strpos($haystack, $needle, $offset);
        if (
$result!==false)
        {
           
$result+=strlen($needle);
           
$result=strlen($haystack)-$result;
        }
    }
    return
$result;
}

?>
koteskie at gmail dot com
18.12.2006 11:31
I've been looking at previous posts and came up with this function to find the start and end off an certain occurance or all occurances of needle within haystack.

I've made some minor tweaks to the code itself, like  counting the length of needle only once and counting the result set array instead of using a count variable.

I also added a length parameter to the result set to use in a following substr_replace call etc...

<?php

function strpos_index($haystack = '',$needle = '',$offset = 0,$limit = 99,$return = null)
{
   
$length = strlen($needle);
   
$occurances = array();
    while(((
$count = count($occurances)) < $limit) && (false !== ($offset = strpos($haystack,$needle,$offset))))
    {
       
$occurances[$count]['length'] = $length;
       
$occurances[$count]['start'] = $offset;
       
$occurances[$count]['end'] = $offset = $offset + $length;
    }
    return
$return === null ? $occurances : $occurances[$return];
}
       
?>
spinicrus at gmail dot com
14.10.2006 19:58
if you want to get the position of a substring relative to a substring of your string, BUT in REVERSE way:

<?php

function strpos_reverse_way($string,$charToFind,$relativeChar) {
   
//
   
$relativePos = strpos($string,$relativeChar);
   
$searchPos = $relativePos;
   
$searchChar = '';
   
//
   
while ($searchChar != $charToFind) {
       
$newPos = $searchPos-1;
       
$searchChar = substr($string,$newPos,strlen($charToFind));
       
$searchPos = $newPos;
    }
   
//
   
if (!empty($searchChar)) {
       
//
       
return $searchPos;
        return
TRUE;
    }
    else {
        return
FALSE;
    }
   
//
}

?>
admin at xylotspace dot com
27.09.2006 4:33
Yay! I came up with a very useful function. This finds a beginning marker and an ending marker (the first after the beginning marker), and returns the contents between them. You specify an initial position in order to tell it where to start looking. You can use a while() or for() loop to get all occurence of a certain string within a string (for example, taking all hyperlinks in a string of HTML code)...

<?php
function get_middle($source, $beginning, $ending, $init_pos) {
   
$beginning_pos = strpos($source, $beginning, $init_pos);
   
$middle_pos = $beginning_pos + strlen($beginning);
   
$ending_pos = strpos($source, $ending, $beginning_pos + 1);
   
$middle = substr($source, $middle_pos, $ending_pos - $middle_pos);
    return
$middle;
}
?>

For example, to find the URL of the very first hyperlink in an HTML string $data, use:

$first_url = get_middle($data, '<a href="', '"', 0);

It's done wonders for scraping HTML pages with certain tools on my website.
chasesan at gmail dot com
12.07.2006 12:48
You can use strpos to produce a funciton that will find the nth instance of a certain string within a string. Personally I find this function almost more useful then strpos itself.

I kinda wish they would put it stock into php but I doupt thats gonna happen any time soon. ^_^

Here is da code:
<?php
//just like strpos, but it returns the position of the nth instance of the needle (yay!)
function strpos2($haystack, $needle, $nth = 1)
{
   
//Fixes a null return if the position is at the beginning of input
    //It also changes all input to that of a string ^.~
   
$haystack = ' '.$haystack;
    if (!
strpos($haystack, $needle))
        return
false;
   
$offset=0;
    for(
$i = 1; $i < $nth; $i++)
       
$offset = strpos($haystack, $needle, $offset) + 1;
    return
strpos($haystack, $needle, $offset) - 1;
}
?>
samuraj at xmail dot cz
24.12.2005 10:38
there was a code (from wodzuY2k at interia dot pl) removing all between <script> tags..
but it didn't work if the tag begins like <SCRIPT language=javascript type=text/javascript>

here is function removing all between "<script"  and  "/script>"

<?php

function remove_js($contents)           
{
  while(
true)
  {
  
$begPos = strpos($contents,"<script");
   if (
$begPos===false) break; //all tags were found & replaced.
  
$endPos = strpos($contents,"/script>",$begPos+strlen("<script"));
  
$tmp = substr($contents,0,$begPos);
  
$tmp .= substr($contents,$endPos+strlen("script>"));
  
$contents = $tmp;
   if (
$loopcontrol++>100) break; //loop infinity control
  
continue;  //search again
 
}
  return
$contents;

}

?>
Virtual Hunter root(at)autocrash(dot)ru
23.12.2005 16:44
If you want to find positions of all needle's in haystack,
you can use this one:

<?php
while (($pos=strpos($haystack,$needle,$pos+1))!==false) $pos_array[$i++]=$pos;
?>

But mind, that it will find from second char. You must use $pos=-1; before you want search from first char.

<?php
$haystack
="one two three one two three one two three one two three one";
$needle="one";

$pos=-1;
while ((
$pos=strpos($haystack,$needle,$pos+1))!==false) $pos_array[$i++]=$pos;
?>

RESULT:

$pos_array[0] = 0
$pos_array[1] = 14
$pos_array[2] = 28
$pos_array[3] = 42
$pos_array[4] = 56
csaba at alum dot mit dot edu
21.11.2005 15:00
<?php
function nthPos ($str, $needles, $n=1) {
   
//    finds the nth occurrence of any of $needles' characters in $str
    //  returns -1 if not found; $n<0 => count backwards from end
    //  e.g. $str = "c:\\winapps\\morph\\photos\\Party\\Phoebe.jpg";
    //       substr($str, nthPos($str, "/\\:", -2)) => \Party\Phoebe.jpg
    //       substr($str, nthPos($str, "/\\:", 4)) => \photos\Party\Phoebe.jpg
   
$pos = -1;
   
$size = strlen($str);
    if (
$reverse=($n<0)) { $n=-$n; $str = strrev($str); }
    while (
$n--) {
   
$bestNewPos = $size;
    for (
$i=strlen($needles)-1;$i>=0;$i--) {
       
$newPos = strpos($str, $needles[$i], $pos+1);
        if (
$newPos===false) $needles = substr($needles,0,$i) . substr($needles,$i+1);
        else
$bestNewPos = min($bestNewPos,$newPos); }
    if ((
$pos=$bestNewPos)==$size) return -1; }
    return
$reverse ? $size-1-$pos : $pos;
}
?>

Csaba Gabor from Vienna
dale at ucsc dot edu
11.11.2005 23:28
if you want need a fast function to find the first occurrence of any ch element of an needle array this function might be of use:
<?php
$eurl
= strpos_needle_array($text, array('"'=>0,'\''=>0,'>'=>0, ' '=>0, "\n"=>0), $surl);

function
strpos_needle_array(& $text, $needle_ary, $offset=0){   
    for(
$ch_pos=$offset;$ch_pos<strlen($text);$ch_pos++){
        if(isset(
$needle_ary[$text[$ch_pos]])){
            return
$ch_pos;
        }
    }
    return
false;
}
?>
info at quantummechanic dot com
6.10.2005 14:42
this function takes a space-deliminted string as a list of potential needles and runs it against another string as a haystack.

the number of positive matches of needles within the haystack is returned as a rounded percentile.

<?php
function keyMatch($needles,$haystack) {
   
$nArray=split(" ",$needles);
   
$found=0;
   
$best=count($nArray);
      for(
$i=0;$i<count($nArray);$i++) {
       
$pzn=strpos(strtoupper($haystack),strtoupper($nArray[$i]));
        if (
$pzn>-1) { $found++; }
       }
   
$pct=($found*100)/$best;
    return
round($pct);
}

$test = keyMatch("the quick wolf","the quick brown fox jumps over the lazy dog");
echo(
$test);
?>

RESULT:

67

(because "the" and "quick" were found but "wolf" was not)
webKami [at] akdomains.com
31.03.2005 17:06
Str Pos Nth (Position of nth occurance of a string)
A handy function to get the position of nth occurance of a substring in a string, with an optional param to make it case insenstive. I am calling it strposnth, suggestions welcome.

Third optional parameter gets the value of n, e.g puting in 2 will return position of second occurance of needle in haystack: Valid inputs (1 = default) 2,3,4.....

Fourth optional parameter can be used to specify the function as case insenstive: Valid inputs (0 = case senstive = default) 1 = case insenstive.

Code:

<?php

function strposnth($haystack, $needle, $nth=1, $insenstive=0)
{
   
//if its case insenstive, convert strings into lower case
   
if ($insenstive) {
       
$haystack=strtolower($haystack);
       
$needle=strtolower($needle);
    }
   
//count number of occurances
   
$count=substr_count($haystack,$needle);
   
   
//first check if the needle exists in the haystack, return false if it does not
    //also check if asked nth is within the count, return false if it doesnt
   
if ($count<1 || $nth > $count) return false;

   
   
//run a loop to nth number of accurance
   
for($i=0,$pos=0,$len=0;$i<$nth;$i++)
    {   
       
//get the position of needle in haystack
        //provide starting point 0 for first time ($pos=0, $len=0)
        //provide starting point as position + length of needle for next time
       
$pos=strpos($haystack,$needle,$pos+$len);

       
//check the length of needle to specify in strpos
        //do this only first time
       
if ($i==0) $len=strlen($needle);
     }
   
   
//return the number
   
return $pos;
}

?>

I just construct this function after trying to search a similar one to use in a shopping cart. I am using this to display a limited number of lines or text for featured products. My aim is to limit the product description to 100 characters or 3 lines / 3 list items whichever is less.

Example code goes like this

<?php

//get the product description from recordset
$text=$row['product_desc'];

//strip off text if its longer than 100 characters
if (strlen($text)>100) $text=substr($text,0,100)." ...";

//get ending of the third line
$pos=strposnth($text,"\n",3,1);

//if found, strip off text after that
if($pos) $text=substr($text,0,$pos);

//nl2li (new line 2 list) this function converts the \n seprated lines of text into sorted or unsorted lists
//I have posted this function in nl2br
//http://uk2.php.net/manual/en/function.nl2br.php
$text=nl2li($text);
echo
$text;

?>

Examples:

<?php
strposnth
("I am trying to go now.","o"); // returns 13 (strpos behavior)
strposnth("I am trying to go now.","O"); // returns false (strpos behavior)
strposnth("I am trying to go now.","o",2); // returns 16 (second occurance)
strposnth("I am trying to go now.","o",7); // returns false (occurance count is less than 7)
strposnth("I am trying to go now.","O",1,1); // returns 13 (stripos behavior)
strposnth("I am trying to go now.","O",3,1); // returns 19 (stripos behavior + nth occurance)
?>

Regards,

webKami [at] akdomains.com
arias at elleondeoro dot com
7.02.2005 15:33
If you want to get all positions in an array, you can use this function. If the optional parameter count is especified, the function will put there the number of matches.

<?php
function strallpos($pajar, $aguja, $offset=0, &$count=null) {
  if (
$offset > strlen($pajar)) trigger_error("strallpos(): Offset not contained in string.", E_USER_WARNING);
 
$match = array();
  for (
$count=0; (($pos = strpos($pajar, $aguja, $offset)) !== false); $count++) {
   
$match[] = $pos;
   
$offset = $pos + strlen($aguja);
  }
  return
$match;
}
?>
admin at bwongar dot com
21.01.2005 3:17
I created a useful function that returns an array with the positions within a string. For more info, read the comments:
<?php
// Returns an array in this fashion:
// array(count => position)
function strpos_array($haystack, $needle){
  
$kill    = 0;    // Kills while loop when changed
  
$offset    = 0;    // Offset for strpos()
  
$i        = 0;    // Counter, not iterator

  
while ($kill === 0) {
      
$i++;
      
$result = strpos($haystack, $needle, $offset);

       if (
$result === FALSE) {        // If result is false (no more instances found), kill the while loop
          
$kill = 1;
       } else {
          
$array[$i] = $result;    // Set array
          
$offset = $result + 1;    // Offset is set 1 character after previous occurence
      
}

   }

   return
$array;

}
?>
takapz at flor dot it
3.12.2004 18:28
here a little function for tag parsing

<?php
function parsing($tag,$string) {
       
$start=strpos($string,"<" . $tag . ">" );
       
$start=$start + strlen("<" . $tag . ">");
        
$end=(strpos($string, "</" . $tag . ">"));
        
$num=  ($end - $start);
        
$valore=substr($string,$start,$num);
          return
$valore;
}
?>
philip
26.08.2004 0:52
Many people look for in_string which does not exist in PHP, so, here's the most efficient form of in_string() (that works in both PHP 4/5) that I can think of:
<?php
function in_string($needle, $haystack, $insensitive = 0) {
    if (
$insensitive) {
        return (
false !== stristr($haystack, $needle)) ? true : false;
    } else {
        return (
false !== strpos($haystack, $needle))  ? true : false;
    }
}
?>
php .at. wwwcrm .dot. com
19.08.2004 19:33
Watch out for type!

The following code will return "not matched", which is a little counter-intuitive.

<?php
$val1
=123;
$val2="123,456,789";
if (
strpos($val2, $val1)!==false) echo "matched";
else echo
"not matched";
?>

When $val1 is cast to string, it behaves as you might expect:

<?php
$val1
=(string)123;
$val2="123,456,789";
if (
strpos($val2, $val1)!==false) echo "matched";
else echo
"not matched";
?>

Hope this saves someone the couple of hours that it took me to spot it :-)

Regards,
Alex Poole
bishop
22.04.2004 0:38
Code like this:
<?php
if (strpos('this is a test', 'is') !== false) {
    echo
"found it";
}
?>

gets repetitive, is not very self-explanatory, and most people handle it incorrectly anyway. Make your life easier:

<?php
function str_contains($haystack, $needle, $ignoreCase = false) {
    if (
$ignoreCase) {
       
$haystack = strtolower($haystack);
       
$needle   = strtolower($needle);
    }
   
$needlePos = strpos($haystack, $needle);
    return (
$needlePos === false ? false : ($needlePos+1));
}
?>

Then, you may do:
<?php
// simplest use
if (str_contains('this is a test', 'is')) {
    echo
"Found it";
}

// when you need the position, as well whether it's present
$needlePos = str_contains('this is a test', 'is');
if (
$needlePos) {
    echo
'Found it at position ' . ($needlePos-1);
}

// you may also ignore case
$needlePos = str_contains('this is a test', 'IS', true);
if (
$needlePos) {
    echo
'Found it at position ' . ($needlePos-1);
}
?>
amy_w at gmx dot de
2.04.2004 19:41
You can use this function to find ANY occurence of a string in an array - no matter if it is just part of one of the array elements.

it returns the key of the first found occurence or false

<?php
function search_array($needle,$haystacks) {
   
$found=false;
    foreach (
$haystacks as $key => $haystack) {
        if (!(
strpos($haystack,$needle)===false)) {
           
$found=$key;
            break;
        }
    }
    return (
$found);
}
?>
ebypdx at comcast dot net
10.03.2004 2:26
counting the occurrences of a substring, recursive-style instead of looping.

<?php
function countSubstrs($haystack, $needle)
{
    return ((
$p = strpos($haystack, $needle)) === false) ? 0 : (1 + countSubstrs(substr($haystack, $p+1), $needle));
}
?>
kingbusiness at hotmail dot com
18.12.2003 19:34
A simple function to find the number of occurances in a string within a string

<?php
function StringCount($searchstring, $findstring)
{
    return (
strpos($searchstring, $findstring) === false ? 0 count(split($findstring, $searchstring)) - 1);
}
?>
justin at visunet dot ie
1.10.2003 18:20
Function:
stripos_words($haystack,'words in string')

This function finds and reports positions of all words in supplied haystack. It returns the results as an array. The array has the following structure.

Array
(
    [69] => Array
        (
            [start] => 69
            [end] => 74
            [word] => honey
        )

    [226] => Array
        (
            [start] => 226
            [end] => 232
            [word] => cobweb
        )
}

Where, for convenience, the main key also contains the positions of each found word occurrence.

If you want the main key to be 0,1,2,3,etc then set the third parameter ($pos_as_key) to false;

Hope this is of help to someone.

Cheers,
Justin :)

<?php
function stripos_words($haystack,$needles='',$pos_as_key=true)
{
   
$idx=0; // Used if pos_as_key is false
   
    // Convert full text to lower case to make this case insensitive
   
$haystack = strtolower($haystack);
   
   
// Split keywords and lowercase them
   
foreach ( preg_split('/[^\w]/',strtolower($needles)) as $needle )
    {
       
// Get all occurences of this keyword
       
$i=0; $pos_cur=0; $pos_found=0;
        while ( 
$pos_found !== false && $needles !== '')
        {
           
// Get the strpos of this keyword (if thereis one)
           
$pos_found = strpos(substr($haystack,$pos_cur),$needle);
            if (
$pos_found !== false )
            {
               
// Set up key for main array
               
$index = $pos_as_key ? $pos_found+$pos_cur : $idx++;
               
               
// Populate main array with this keywords positional data
               
$positions[$index]['start'] = $pos_found+$pos_cur;
               
$pos_cur += ($pos_found+strlen($needle));
               
$positions[$index]['end']   = $pos_cur;
               
$positions[$index]['word'] = $needle;
               
$i++;
            }
        }
    }

   
// If we found anything then sort the array and return it
   
if ( isset($positions) )
    {
       
ksort($positions);
        return
$positions;
    }

   
// If nothign was found then return false
   
return false;
}
?>



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