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(PHP 4 >= 4.0.4, PHP 5)
curl_getinfo — Informationen zu einem bestimmten Transfer abfragen
Gibt Informationen über den letzen Transfer zurück.
Ein von curl_init() zurückgegebenes cURL-Handle.
Eine der folgenden Konstanten:
Wird der Parameter opt angegeben, wird der entsprechende Wert als string zurückgegeben. Andernfalls liefert die Funktion ein assoziatives Array mit den folgenden Elementen zurück (analog dem Parameter opt):
| Version | Beschreibung |
|---|---|
| 5.1.3 | Konstante CURLINFO_HEADER_OUT eingeführt. |
Beispiel #1 curl_getinfo()-Beispiel
<?php
// Eine cURL-Resource erstellen
$ch = curl_init('http://www.yahoo.com/');
// ausführen
curl_exec($ch);
// prüfen, ob ein Fehler aufgetreten ist
if(!curl_errno($ch))
{
$info = curl_getinfo($ch);
echo 'Es wurden ' . $info['total_time'] . ' Sekunden benötigt für einen Request an ' . $info['url'];
}
// Resource schliessen
curl_close($ch);
?>
CURLINFO_HTTP_CODE does not return a string, as the docs say, but rather an integer.
<?php
$c = curl_init('http://www.example.com/');
if(curl_getinfo($c, CURLINFO_HTTP_CODE) === '200') echo "CURLINFO_HTTP_CODE returns a string.";
if(curl_getinfo($c, CURLINFO_HTTP_CODE) === 200) echo "CURLINFO_HTTP_CODE returns an integer.";
curl_close($c);
?>
returns
"CURLINFO_HTTP_CODE returns an integer."
The main doc neglects to mention that when the CURLINFO_HEADER_OUT option is set the array returned by this function will included a new property, request_header, that is a string of the headers sent in the request.
A code snippet that I had attempted to enumerate the Remote File Size and to post Amount of Time taken for that particular Curl Request.
<?php
/* borrowed the Byte Conversion code (byte_convert function) posted by "olafurw at gmail.com" and modified by "d.abromeit" in http://in.php.net/filesize. I did make changes in the notation of expression of multiples of bytes from KiB => KB, MiB => MB etc all symbols in this Byte Code*/
function byte_convert($bytes)
{
$symbol = array('B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB');
$exp = 0;
$converted_value = 0;
if( $bytes > 0 )
{
$exp = floor( log($bytes)/log(1024) );
$converted_value = ( $bytes/pow(1024,floor($exp)) );
}
return sprintf( '%.2f '.$symbol[$exp], $converted_value );
}
$userAgent = 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)';
$url = 'http://www.spiderace.com/samplefiles/testfile.zip';
// initialize curl with given url
$ch = curl_init($url);
// make sure we get the header
curl_setopt($ch, CURLOPT_HEADER, 1);
// make it a http HEAD request
curl_setopt($ch, CURLOPT_NOBODY, 1);
// add useragent
curl_setopt($ch, CURLOPT_USERAGENT, $userAgent);
//Tell curl to write the response to a variable
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// The maximum number of seconds to allow cURL functions to execute.
curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,60);
// Tell curl to stop when it encounters an error
curl_setopt($ch, CURLOPT_FAILONERROR, 1);
$execute = curl_exec($ch);
// Check if any error occured
if(!curl_errno($ch))
{
$bytes = curl_getinfo($ch, CURLINFO_CONTENT_LENGTH_DOWNLOAD);
// Display the File Size
echo byte_convert($bytes);
echo "<br><br>";
$total_time = curl_getinfo($ch, CURLINFO_TOTAL_TIME);
echo 'Took ' . $total_time . ' seconds to send a request to ' . $url;
clearstatcache();
}
curl_close($ch);
?>
NOTE: This code worked on Both Linux (tried on CentOS) & Windows Servers (tried on XAMPP For Windows on Windows XP PC), thank you. Hope this will be helpful to others as well.
CURLINFO_CONTENT_LENGTH_DOWNLOAD contains zero in FTP request although Content-Length field is present.
Following workaround may helps:
<?php
$ch = curl_init($url);
... CURL OPTIONS ...
$result=curl_exec($ch);
$pu=parse_url($url);
if($pu['scheme']=='ftp'){
$regexp="/Content-Length: (\d*)/";
preg_match($regexp,$result,$matches);
$con_len=$matches[1];
}
else $con_len = curl_getinfo($ch, CURLINFO_CONTENT_LENGTH_DOWNLOAD);
?>
Its worth to keep using CURLINFO_CONTENT_LENGTH_DOWNLOAD in http requests, becouse there could be several headers pack if CURLOPT_FOLLOWLOCATION is fired, and regular expression for this case is a little bit complicated.
Just a quick note: if you want to use curl_getinfo() with option CURLINFO_HEADER_OUT in order to debug your cURL request, you must add curl_setopt($handle, CURLINFO_HEADER_OUT, true); first while specifying the options.
Keep in mind that for CURLOPT_RETURNTRANSFER it has to be set with curl_setopt() before execution:
This doesn't work:
<?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://www.example.com/");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_exec($ch);
var_dump(curl_getinfo($ch,CURLINFO_HEADER_OUT));
?>
This works:
<?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://www.example.com/");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLINFO_HEADER_OUT, true);
curl_exec($ch);
var_dump(curl_getinfo($ch,CURLINFO_HEADER_OUT));
?>
There is a constant missing from that list. CURLINFO_REDIRECT_COUNT will give you the number of redirects it went through if CURLOPT_FOLLOWLOCATION was set.
Here are the response codes ready for pasting in an ini-style file. Can be used to provide more descriptive message, corresponding to 'http_code' index of the arrray returned by curl_getinfo().
These are taken from the W3 consortium HTTP/1.1: Status Code Definitions, found at
http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
[Informational 1xx]
100="Continue"
101="Switching Protocols"
[Successful 2xx]
200="OK"
201="Created"
202="Accepted"
203="Non-Authoritative Information"
204="No Content"
205="Reset Content"
206="Partial Content"
[Redirection 3xx]
300="Multiple Choices"
301="Moved Permanently"
302="Found"
303="See Other"
304="Not Modified"
305="Use Proxy"
306="(Unused)"
307="Temporary Redirect"
[Client Error 4xx]
400="Bad Request"
401="Unauthorized"
402="Payment Required"
403="Forbidden"
404="Not Found"
405="Method Not Allowed"
406="Not Acceptable"
407="Proxy Authentication Required"
408="Request Timeout"
409="Conflict"
410="Gone"
411="Length Required"
412="Precondition Failed"
413="Request Entity Too Large"
414="Request-URI Too Long"
415="Unsupported Media Type"
416="Requested Range Not Satisfiable"
417="Expectation Failed"
[Server Error 5xx]
500="Internal Server Error"
501="Not Implemented"
502="Bad Gateway"
503="Service Unavailable"
504="Gateway Timeout"
505="HTTP Version Not Supported"
And an example usage:
<?php
$ch = curl_init(); // create cURL handle (ch)
if (!$ch) {
die("Couldn't initialize a cURL handle");
}
// set some cURL options
$ret = curl_setopt($ch, CURLOPT_URL, "http://mail.yahoo.com");
$ret = curl_setopt($ch, CURLOPT_HEADER, 1);
$ret = curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
$ret = curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0);
$ret = curl_setopt($ch, CURLOPT_TIMEOUT, 30);
// execute
$ret = curl_exec($ch);
if (empty($ret)) {
// some kind of an error happened
die(curl_error($ch));
curl_close($ch); // close cURL handler
} else {
$info = curl_getinfo($ch);
curl_close($ch); // close cURL handler
if (empty($info['http_code'])) {
die("No HTTP code was returned");
} else {
// load the HTTP codes
$http_codes = parse_ini_file("path/to/the/ini/file/I/pasted/above");
// echo results
echo "The server responded: <br />";
echo $info['http_code'] . " " . $http_codes[$info['http_code']];
}
}
?>
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