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run code in 150+ php & hhvm versions
Bugs & Features
<?php $str = "dangers:(cloud1条 OR deep1条)"; var_dump(preg_match_all('/((?<key>[^\:\(\)]+)\s*\:\s*\(([^\(])*))?/i', $str, $m)); var_dump($m);
Output for 5.2.2 - 5.6.28, 7.0.0 - 7.1.0
Warning: preg_match_all(): Compilation failed: unmatched parentheses at offset 38 in /in/JAbB7 on line 4 bool(false) NULL
Output for hhvm-3.10.0 - 3.12.0
Warning: Compilation failed: unmatched parentheses at offset 38 in /in/JAbB7 on line 4 bool(false) NULL
Output for 5.2.0 - 5.2.1
Warning: preg_match_all(): Compilation failed: unrecognized character after (?< at offset 4 in /in/JAbB7 on line 4 bool(false) NULL
Output for 4.3.11 - 4.4.5, 5.0.0 - 5.1.6
Warning: preg_match_all(): Compilation failed: unrecognized character after (?< at offset 4 in /in/JAbB7 on line 4 bool(false) array(0) { }
Output for 4.4.6 - 4.4.9
Warning: preg_match_all(): Compilation failed: unmatched parentheses at offset 38 in /in/JAbB7 on line 4 bool(false) array(0) { }
Output for 4.3.0 - 4.3.10
Warning: Compilation failed: unrecognized character after (?< at offset 4 in /in/JAbB7 on line 4 bool(false) array(0) { }