3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $string = "Patient will come in earlier\n\nPacket emailed 2012-06-14 11:30:06\n\nPacket emailed 2012-06-12 12:32:04"; $pattern = "/packet (e{0,1}mailed) \d{4}-(\d{2}-\d{2})/i"; preg_match_all($pattern,$string,$matches,PREG_SET_ORDER); print_r($matches[count($matches)-1]); ?>
based on DcbE1
Output for 4.3.0 - 7.1.0
Array ( [0] => Packet emailed 2012-06-12 [1] => emailed [2] => 06-12 )