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