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<?php $words = array('systematic', 'سلام','gear','synthesis','mysterious'); $your_array = preg_grep("s", $words); print_r($your_array);
Output for 4.3.11 - 7.2.0
Warning: preg_grep(): Delimiter must not be alphanumeric or backslash in /in/skaKh on line 5
Output for 4.3.0 - 4.3.10
Warning: Delimiter must not be alphanumeric or backslash in /in/skaKh on line 5