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<?php $user_email = 'asd@toyota.com'; $re_to = "[^@]+@[^@]+"; //"[^@]+@[^@]*toyota[^@]*\.[^@]+"; $re_to = "toyota.com"; $regex = preg_quote($re_to, '#') . '$'; $res = preg_match("#$regex#i", $user_email); echo $res ? 'True' : 'False';
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, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 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
True

preferences:
243.45 ms | 406 KiB | 315 Q