3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = '<iframe width="800"><embed width=300>fdgdfg</embed>sfsdfsdf</iframe>'; echo preg_replace('~(.*width=["]?)(\d+)(["]?.*)~', '${1}222${3}', $s);

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61.9 ms | 402 KiB | 5 Q