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run code in 300+ PHP versions simultaneously
<?php $re = '/a\[(\w+)\]/i'; $str = 'a[link1], a[link2] a[link3] text text text a[link4] text a[link5] text'; preg_match_all($re, $str, $links); var_dump($links[1]);
Output for git.master, git.master_jit, rfc.property-hooks
array(5) { [0]=> string(5) "link1" [1]=> string(5) "link2" [2]=> string(5) "link3" [3]=> string(5) "link4" [4]=> string(5) "link5" }

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