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<?php echo preg_match('/?!([\d]+\.[\d]+\.[\d]+)/', '5.5.5-pl-udmedia', $array); var_dump($array);
Output for 5.2.0 - 7.2.0
Warning: preg_match(): Compilation failed: nothing to repeat at offset 0 in /in/jtAnn on line 3 NULL
Output for 4.3.11 - 5.1.6
Warning: preg_match(): Compilation failed: nothing to repeat at offset 0 in /in/jtAnn on line 3 array(0) { }
Output for 4.3.0 - 4.3.10
Warning: Compilation failed: nothing to repeat at offset 0 in /in/jtAnn on line 3 array(0) { }