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<?php preg_match_all('/("|\') ([^"\']+?) \1 /x', "dfgfdgdfsg'dfsg'dfsg'dfsgdf'g'dfg'fdg'rt'dfg", $m); var_dump($m);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array(3) { [0]=> array(4) { [0]=> string(6) "'dfsg'" [1]=> string(8) "'dfsgdf'" [2]=> string(5) "'dfg'" [3]=> string(4) "'rt'" } [1]=> array(4) { [0]=> string(1) "'" [1]=> string(1) "'" [2]=> string(1) "'" [3]=> string(1) "'" } [2]=> array(4) { [0]=> string(4) "dfsg" [1]=> string(6) "dfsgdf" [2]=> string(3) "dfg" [3]=> string(2) "rt" } }

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