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@ 2014-08-06T20:07:44Z

<?php
$heart = "love";
$pat = "[♥]+";
$sub = "heart";
$code = mb_ereg_replace( $pat, $sub, "I \$♥ PHP" );
var_dump($code);
echo eval("$code");

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
mb_ereg_replace: documentation ( source)

preferences:dark modelive preview

41.35 ms | 402 KiB | 5 Q