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<?php $text = <<<'AHA' ewfda fdffdsfddsa fdsaf ewewem thurn@live.com rewqreqw fda fdefhgfjh fdsa fdsaf fangorn@hotmail.com rewqr re q rewqrrwq fda fdfdf dsa fdsaf euice@outlook.com ewrewqre fd a f fhjhfdffdsaf fdsa fdsaf rgarcia@optonline.net rewqrewq fda fdfdsa fdsaf mxiao@yahoo.com rewreqw rewqer fda fd hffdsa fdsaf firstpr@att.net r ewqrewq AHA; $pattern='/\S+@\S+\.\S{1,6}/'; preg_match_all($pattern, $text, $matchArray); print_r($matchArray[0]);
Output for 5.6.38, 7.0.33, 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 ( [0] => thurn@live.com [1] => fangorn@hotmail.com [2] => euice@outlook.com [3] => rgarcia@optonline.net [4] => mxiao@yahoo.com [5] => firstpr@att.net )

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139.13 ms | 408 KiB | 5 Q