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run code in 150+ php & hhvm versions
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<?php $subject = "text text text text [hello] text (hello2) (hello3) text"; $pattern = '\[([^)]*)\]'; preg_match($pattern, $subject, $matches, PREG_OFFSET_CAPTURE, 3); print_r($matches);
Output for 5.2.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: preg_match(): Delimiter must not be alphanumeric or backslash in /in/RZaJJ on line 5
Output for hhvm-3.12.0
Warning: Delimiter must not be alphanumeric or backslash in /in/RZaJJ on line 5
Output for hhvm-3.10.0
Warning: Delimiter must not be alphanumeric or backslash in /in/RZaJJ on line -1
Output for 4.3.11 - 5.1.6
Warning: preg_match(): Delimiter must not be alphanumeric or backslash in /in/RZaJJ on line 5 Array ( )
Output for 4.3.3 - 4.3.10
Warning: Delimiter must not be alphanumeric or backslash in /in/RZaJJ on line 5 Array ( )
Output for 4.3.0 - 4.3.2
Warning: Wrong parameter count for preg_match() in /in/RZaJJ on line 5