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<?php $host = "https://chat.stackoverflow.com/rooms/11/php/"; $currentDomain = preg_replace('(^.+\.(?=[^.]+\.[^.]+$))', $host); echo $currentDomain;
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Fatal error: Uncaught ArgumentCountError: preg_replace() expects at least 3 arguments, 2 given in /in/n73SR:5 Stack trace: #0 /in/n73SR(5): preg_replace('(^.+\\.(?=[^.]+\\...', 'https://chat.st...') #1 {main} thrown in /in/n73SR on line 5
Process exited with code 255.
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: preg_replace() expects at least 3 parameters, 2 given in /in/n73SR on line 5

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