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run code in 150+ php & hhvm versions
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<?php $text = 'My Name ## is #"P_NAM3"# and \r\n I am #\'P_AG2\'# years old #`abc`#'; $r = '#([^#]*)#'; //$r = '#(?P<name>.*?)#'; //$r = '#(\w*)#'; preg_match_all('/'.$r.'/m', $text, $m); var_dump($m); echo preg_replace('/'.$r.'/m', '$2_es', $text);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(2) { [0]=> array(4) { [0]=> string(2) "##" [1]=> string(10) "#"P_NAM3"#" [2]=> string(9) "#'P_AG2'#" [3]=> string(7) "#`abc`#" } [1]=> array(4) { [0]=> string(0) "" [1]=> string(8) ""P_NAM3"" [2]=> string(7) "'P_AG2'" [3]=> string(5) "`abc`" } } My Name _es is _es and \r\n I am _es years old _es