Référence du fichier patterns.php

Espaces de nommage
namespace	utf8

Variables
	$UTF8_VALID
	$UTF8_MATCH
	$UTF8_BAD

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Documentation des variables

$UTF8_BAD

Valeur initiale :

    '([\x00-\x7F]'.                          # ASCII (including control chars)
    '|[\xC2-\xDF][\x80-\xBF]'.               # non-overlong 2-byte
    '|\xE0[\xA0-\xBF][\x80-\xBF]'.           # excluding overlongs
    '|[\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}'.    # straight 3-byte
    '|\xED[\x80-\x9F][\x80-\xBF]'.           # excluding surrogates
    '|\xF0[\x90-\xBF][\x80-\xBF]{2}'.        # planes 1-3
    '|[\xF1-\xF3][\x80-\xBF]{3}'.            # planes 4-15
    '|\xF4[\x80-\x8F][\x80-\xBF]{2}'.        # plane 16
    '|(.{1}))'

Référencé par utf8_bad_find(), utf8_bad_findall(), utf8_bad_replace(), et utf8_bad_strip().

$UTF8_MATCH

Valeur initiale :

    '([\x00-\x7F])'.                          # ASCII (including control chars)
    '|([\xC2-\xDF][\x80-\xBF])'.              # non-overlong 2-byte
    '|(\xE0[\xA0-\xBF][\x80-\xBF])'.          # excluding overlongs
    '|([\xE1-\xEC\xEE\xEF][\x80-\xBF]{2})'.   # straight 3-byte
    '|(\xED[\x80-\x9F][\x80-\xBF])'.          # excluding surrogates
    '|(\xF0[\x90-\xBF][\x80-\xBF]{2})'.       # planes 1-3
    '|([\xF1-\xF3][\x80-\xBF]{3})'.           # planes 4-15
    '|(\xF4[\x80-\x8F][\x80-\xBF]{2})'

$UTF8_VALID

Valeur initiale :

 '^('.
    '[\x00-\x7F]'.                          # ASCII (including control chars)
    '|[\xC2-\xDF][\x80-\xBF]'.              # non-overlong 2-byte
    '|\xE0[\xA0-\xBF][\x80-\xBF]'.          # excluding overlongs
    '|[\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}'.   # straight 3-byte
    '|\xED[\x80-\x9F][\x80-\xBF]'.          # excluding surrogates
    '|\xF0[\x90-\xBF][\x80-\xBF]{2}'.       # planes 1-3
    '|[\xF1-\xF3][\x80-\xBF]{3}'.           # planes 4-15
    '|\xF4[\x80-\x8F][\x80-\xBF]{2}'.       # plane 16
    ')*$'