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@ 2014-01-24T09:41:49Z

<?php

$string = "miauw\xe1\x8e\xa3";

$result = preg_replace('/./uD', '', $string, -1, $count);

var_dump(
	$string,
    $result,
    $count
);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
preg_replace: documentation ( source)

preferences:dark modelive preview

38.34 ms | 402 KiB | 5 Q