3v4l.org

run code in 300+ PHP versions simultaneously
<?php $matches = array(); $value = '#12 3ff;'; $value = preg_replace('/&#(\d+);?/me', "chr('\\1')", $value); $value2 = preg_replace_callback('/&#(\d+);?/m', function($matches) {return chr($matches[1]);}, $value); echo $value;

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46.11 ms | 402 KiB | 5 Q