friendica_2021-01/library/Smarty/libs/plugins/shared.mb_str_replace.php

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<?php
/**
* Smarty shared plugin
*
* @package Smarty
* @subpackage PluginsShared
*/
if (!function_exists('smarty_mb_str_replace')) {
/**
* Multibyte string replace
*
* @param string $search the string to be searched
* @param string $replace the replacement string
* @param string $subject the source string
* @param int &$count number of matches found
*
* @return string replaced string
* @author Rodney Rehm
*/
function smarty_mb_str_replace($search, $replace, $subject, &$count = 0)
{
if (!is_array($search) && is_array($replace)) {
return false;
}
if (is_array($subject)) {
// call mb_replace for each single string in $subject
foreach ($subject as &$string) {
$string = & smarty_mb_str_replace($search, $replace, $string, $c);
$count += $c;
}
} elseif (is_array($search)) {
if (!is_array($replace)) {
foreach ($search as &$string) {
$subject = smarty_mb_str_replace($string, $replace, $subject, $c);
$count += $c;
}
} else {
$n = max(count($search), count($replace));
while ($n --) {
$subject = smarty_mb_str_replace(current($search), current($replace), $subject, $c);
$count += $c;
next($search);
next($replace);
}
}
} else {
$parts = mb_split(preg_quote($search), $subject);
$count = count($parts) - 1;
$subject = implode($replace, $parts);
}
return $subject;
}
}