3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = 'PT3M'; $pattern = '/[0-9]+/i'; $replacement = '#'; echo preg_replace($pattern, $replacement, $string); echo "\n"; $pattern = '/[PTMWDYSH]/i'; $replacement = ''; echo preg_replace($pattern, $replacement, $string);

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44.11 ms | 402 KiB | 5 Q