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run code in 300+ PHP versions simultaneously
<?php $string = "some text here [baz] and here [you|him|her|foo|bar|baz|foo|option|test] and even here [another]."; $pattern = (function () use ($string) { $array = []; for ($i = 0; $i <= substr_count($string, "|"); $i++) { $array[] = $i == 0 ? '([^][|]+)' : '([^][|]+)?'; } return implode("\|?", $array); })(); preg_match_all("~\[$pattern]~", $string, $matches, PREG_SET_ORDER); var_dump($matches);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
array(3) { [0]=> array(2) { [0]=> string(5) "[baz]" [1]=> string(3) "baz" } [1]=> array(10) { [0]=> string(41) "[you|him|her|foo|bar|baz|foo|option|test]" [1]=> string(3) "you" [2]=> string(3) "him" [3]=> string(3) "her" [4]=> string(3) "foo" [5]=> string(3) "bar" [6]=> string(3) "baz" [7]=> string(3) "foo" [8]=> string(6) "option" [9]=> string(4) "test" } [2]=> array(2) { [0]=> string(9) "[another]" [1]=> string(7) "another" } }
Output for 5.6.0 - 5.6.25
Parse error: syntax error, unexpected '(' in /in/isnnT on line 11
Process exited with code 255.

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