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<?php $text = "This is a text with some@email.com an e-mail address in it"; echo preg_replace_callback( '~[\w.-]+@(?:[\w-]+\.)+\w+~', function($m) { return "**{$m[0]}**"; }, $text );
Output for 7.1.25, 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 - 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
This is a text with **some@email.com** an e-mail address in it
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106.48 ms | 1403 KiB | 4 Q