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PHP : Function Reference : Multibyte String Functions : mb_ereg_replace

mb_ereg_replace

Replace regular expression with multibyte support (PHP 4 >= 4.2.0, PHP 5)
string mb_ereg_replace ( string pattern, string replacement, string string [, string option] )


Code Examples / Notes » mb_ereg_replace

squeegee

well, if you just calculated the length of the find and replace strings once instead of on every loop, it would likely speed it up a lot.

mpnicholas @t gmail dot com

Regarding the mb_str_ireplace() function: I benchmarked it against mb_eregi_replace() for single-character substitution, and it was significantly slower. Despite avoiding the ereg call, I think the while loop ends slowing you down too much for this to be practical.

vondrej

Are you looking for htmlentities() for multibyte strings? This might help you - it just replace <, >, ", '
/**
*  Multibyte equivalent for htmlentities() [lite version :)]
*
* @param string $str
* @param string $encoding
* @return string
**/
function mb_htmlentities($str, $encoding = 'utf-8') {
mb_regex_encoding($encoding);
$pattern = array('<', '>', '"', '\'');
$replacement = array('&lt;', '&gt;', '&quot;', '&#39;');
for ($i=0; $i<sizeof($pattern); $i++) {
$str = mb_ereg_replace($pattern[$i], $replacement[$i], $str);
}
return $str;
}


faxe

A simple mb_str_ireplace() implementation - a faster (?) replacement for non-regexp multi-byte string replacement:
[code]
function mb_str_ireplace($co, $naCo, $wCzym)
{
$wCzymM = mb_strtolower($wCzym);
$coM    = mb_strtolower($co);
$offset = 0;

while(($poz = mb_strpos($wCzymM, $coM, $offset)) !== false)
{
$offset = $poz + mb_strlen($naCo);
$wCzym = mb_substr($wCzym, 0, $poz). $naCo .mb_substr($wCzym, $poz+mb_strlen($co));
$wCzymM = mb_strtolower($wCzym);
}

return $wCzym;
}[/code]


04-dec-2006 04:36

'i' option does not work correctly with multibyte characters. The function does not locate/replace the multibyte string if it's different case then specified on multibyte needle which is in different case.

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