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run code in 150+ php & hhvm versions
Bugs & Features
<?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); function trad($v) { var_dump($v); if($v[1] == '' || $v[1] == 'abc') return $v[1] . '_es'; return $v[1]; } echo preg_replace_callback('/'.$r.'/m', 'trad', $text);
Output for 5.2.7 - 7.1.0
array(3) { [0]=> string(2) "##" ["name"]=> string(0) "" [1]=> string(0) "" } array(3) { [0]=> string(8) "#P_NAM3#" ["name"]=> string(6) "P_NAM3" [1]=> string(6) "P_NAM3" } array(3) { [0]=> string(7) "#P_AG2#" ["name"]=> string(5) "P_AG2" [1]=> string(5) "P_AG2" } array(3) { [0]=> string(5) "#abc#" ["name"]=> string(3) "abc" [1]=> string(3) "abc" } My Name _es is "P_NAM3" and \r\n I am 'P_AG2' years old `abc_es`
Output for 4.3.0 - 5.2.6
array(2) { [0]=> string(2) "##" [1]=> string(0) "" } array(2) { [0]=> string(8) "#P_NAM3#" [1]=> string(6) "P_NAM3" } array(2) { [0]=> string(7) "#P_AG2#" [1]=> string(5) "P_AG2" } array(2) { [0]=> string(5) "#abc#" [1]=> string(3) "abc" } My Name _es is "P_NAM3" and \r\n I am 'P_AG2' years old `abc_es`