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run code in 300+ PHP versions simultaneously
<?php $text = 'My Name is #P_NAME# and \r\n I am #P_AGE# years old'; $r = '#([^#])+#'; $r = '#[(?<name>\S+)\]#'; $r = '#.+?#'; $r = '#(.+?)#'; $r = '#\w*#'; preg_match_all('/'.$r.'/m', $text, $m); var_dump($m);

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