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<?php preg_match('^[0-9]{2}//[0-9]{2}\/[0-9]{4}$', '19/04/2024', $matches); var_dump($matches);
Output for 5.2.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: preg_match(): No ending delimiter '^' found in /in/XEgZd on line 2 NULL
Output for hhvm-3.10.0 - 3.12.0
Warning: No ending delimiter '^' found: [^[0-9]{2}//[0-9]{2}\/[0-9]{4}$] in /in/XEgZd on line 2 NULL
Output for 4.3.11 - 5.1.6
Warning: preg_match(): No ending delimiter '^' found in /in/XEgZd on line 2 array(0) { }
Output for 4.3.0 - 4.3.10
Warning: No ending delimiter '^' found in /in/XEgZd on line 2 array(0) { }