3v4l.org

run code in 300+ PHP versions simultaneously
<?php $res = ""; $heart = "love"; $pat = "[♥]+"; $sub = "heart"; $code = mb_ereg_replace( $pat, $sub, "I \$♥ PHP" ); eval("\$res = \"$code\";"); echo $res;

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55.84 ms | 402 KiB | 5 Q