PHP Doku:: Normalizes the input provided and returns the normalized string - normalizer.normalize.html

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The Normalizer class

<<Normalizer::isNormalized -- normalizer_is_normalized

The MessageFormatter class>>

Normalizer::normalize

normalizer_normalize

(PHP 5 >= 5.3.0, PECL intl >= 1.0.0)

Normalizer::normalize -- normalizer_normalize Normalizes the input provided and returns the normalized string

Beschreibung

Object oriented style

static string Normalizer::normalize ( string $input [, string $form = Normalizer::FORM_C ] )

Procedural style

string normalizer_normalize ( string $input [, string $form = Normalizer::FORM_C ] )

Normalizes the input provided and returns the normalized string

Parameter-Liste

input

The input string to normalize

form

One of the normalization forms.

Rückgabewerte

The normalized string or NULL if an error occurred.

Beispiele

Beispiel #1 normalizer_normalize() example

<?php
$char_A_ring 
"\xC3\x85"// 'LATIN CAPITAL LETTER A WITH RING ABOVE' (U+00C5)
$char_combining_ring_above "\xCC\x8A";  // 'COMBINING RING ABOVE' (U+030A)
 
$char_1 normalizer_normalize$char_A_ringNormalizer::FORM_C );
$char_2 normalizer_normalize'A' $char_combining_ring_aboveNormalizer::FORM_C );
 
echo 
urlencode($char_1);
echo 
' ';
echo 
urlencode($char_2);
?>

Beispiel #2 OO example

<?php
$char_A_ring 
"\xC3\x85"// 'LATIN CAPITAL LETTER A WITH RING ABOVE' (U+00C5)
$char_combining_ring_above "\xCC\x8A";  // 'COMBINING RING ABOVE' (U+030A)
 
$char_1 Normalizer::normalize$char_A_ringNormalizer::FORM_C );
$char_2 Normalizer::normalize'A' $char_combining_ring_aboveNormalizer::FORM_C );
 
echo 
urlencode($char_1);
echo 
' ';
echo 
urlencode($char_2);
?>

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

%C3%85 %C3%85

Siehe auch


Ein BenutzerBeitrag:
- Beiträge aktualisieren...
akniep at rayo dot info
30.07.2009 18:03
Especially when matching texts against each-other or against keywords, it is helpful to normalize the texts before.
The following function removes all diacritics (marks like accents) from a given UTF8-encoded texts and returns ASCii-text.

Be sure to have the PHP-Normalizer-extension (intl and icu) installed.

Tipp: You may also want to map the text to lower case before execute matching procedures ...

<?php

function normalizeUtf8String( $s)
{
   
// Normalizer-class missing!
   
if (! class_exists("Normalizer", $autoload = false))
        return
$original_string;
   
   
   
// maps German (umlauts) and other European characters onto two characters before just removing diacritics
   
$s    = preg_replace( '@\x{00c4}@u'    , "AE",    $s );    // umlaut Ä => AE
   
$s    = preg_replace( '@\x{00d6}@u'    , "OE",    $s );    // umlaut Ö => OE
   
$s    = preg_replace( '@\x{00dc}@u'    , "UE",    $s );    // umlaut Ü => UE
   
$s    = preg_replace( '@\x{00e4}@u'    , "ae",    $s );    // umlaut ä => ae
   
$s    = preg_replace( '@\x{00f6}@u'    , "oe",    $s );    // umlaut ö => oe
   
$s    = preg_replace( '@\x{00fc}@u'    , "ue",    $s );    // umlaut ü => ue
   
$s    = preg_replace( '@\x{00f1}@u'    , "ny",    $s );    // ñ => ny
   
$s    = preg_replace( '@\x{00ff}@u'    , "yu",    $s );    // ÿ => yu
   
   
    // maps special characters (characters with diacritics) on their base-character followed by the diacritical mark
        // exmaple:  Ú => U´,  á => a`
   
$s    = Normalizer::normalize( $s, Normalizer::FORM_D );
   
   
   
$s    = preg_replace( '@\pM@u'        , "",    $s );    // removes diacritics
   
   
   
$s    = preg_replace( '@\x{00df}@u'    , "ss",    $s );    // maps German ß onto ss
   
$s    = preg_replace( '@\x{00c6}@u'    , "AE",    $s );    // Æ => AE
   
$s    = preg_replace( '@\x{00e6}@u'    , "ae",    $s );    // æ => ae
   
$s    = preg_replace( '@\x{0132}@u'    , "IJ",    $s );    // ? => IJ
   
$s    = preg_replace( '@\x{0133}@u'    , "ij",    $s );    // ? => ij
   
$s    = preg_replace( '@\x{0152}@u'    , "OE",    $s );    // Œ => OE
   
$s    = preg_replace( '@\x{0153}@u'    , "oe",    $s );    // œ => oe
   
   
$s    = preg_replace( '@\x{00d0}@u'    , "D",    $s );    // Ð => D
   
$s    = preg_replace( '@\x{0110}@u'    , "D",    $s );    // Ð => D
   
$s    = preg_replace( '@\x{00f0}@u'    , "d",    $s );    // ð => d
   
$s    = preg_replace( '@\x{0111}@u'    , "d",    $s );    // d => d
   
$s    = preg_replace( '@\x{0126}@u'    , "H",    $s );    // H => H
   
$s    = preg_replace( '@\x{0127}@u'    , "h",    $s );    // h => h
   
$s    = preg_replace( '@\x{0131}@u'    , "i",    $s );    // i => i
   
$s    = preg_replace( '@\x{0138}@u'    , "k",    $s );    // ? => k
   
$s    = preg_replace( '@\x{013f}@u'    , "L",    $s );    // ? => L
   
$s    = preg_replace( '@\x{0141}@u'    , "L",    $s );    // L => L
   
$s    = preg_replace( '@\x{0140}@u'    , "l",    $s );    // ? => l
   
$s    = preg_replace( '@\x{0142}@u'    , "l",    $s );    // l => l
   
$s    = preg_replace( '@\x{014a}@u'    , "N",    $s );    // ? => N
   
$s    = preg_replace( '@\x{0149}@u'    , "n",    $s );    // ? => n
   
$s    = preg_replace( '@\x{014b}@u'    , "n",    $s );    // ? => n
   
$s    = preg_replace( '@\x{00d8}@u'    , "O",    $s );    // Ø => O
   
$s    = preg_replace( '@\x{00f8}@u'    , "o",    $s );    // ø => o
   
$s    = preg_replace( '@\x{017f}@u'    , "s",    $s );    // ? => s
   
$s    = preg_replace( '@\x{00de}@u'    , "T",    $s );    // Þ => T
   
$s    = preg_replace( '@\x{0166}@u'    , "T",    $s );    // T => T
   
$s    = preg_replace( '@\x{00fe}@u'    , "t",    $s );    // þ => t
   
$s    = preg_replace( '@\x{0167}@u'    , "t",    $s );    // t => t
   
    // remove all non-ASCii characters
   
$s    = preg_replace( '@[^\0-\x80]@u'    , "",    $s );
   
   
   
// possible errors in UTF8-regular-expressions
   
if (empty($s))
        return
$original_string;
    else
        return
$s;
}
?>

The above function is mainly based on the following article:
http://ahinea.com/en/tech/accented-translate.html



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