3v4l.org

run code in 300+ PHP versions simultaneously
<?php $site = "http://hollandshielding.com/"; $url = parse_url($site); $hasSubdomain = preg_match('/(\w)\.(\w)\.(\w)/'); var_dump($subdomain);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught ArgumentCountError: preg_match() expects at least 2 arguments, 1 given in /in/e0X55:5 Stack trace: #0 /in/e0X55(5): preg_match('/(\\w)\\.(\\w)\\.(\\...') #1 {main} thrown in /in/e0X55 on line 5
Process exited with code 255.
Output for 5.0.4 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.31, 7.1.0 - 7.1.23, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Warning: preg_match() expects at least 2 parameters, 1 given in /in/e0X55 on line 5 Notice: Undefined variable: subdomain in /in/e0X55 on line 7 NULL
Output for 7.3.32 - 7.3.33, 7.4.26
Warning: preg_match() expects at least 2 parameters, 1 given in /in/e0X55 on line 5 NULL
Output for 4.3.3 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
Warning: preg_match() expects at least 2 parameters, 1 given in /in/e0X55 on line 5 Notice: Undefined variable: subdomain in /in/e0X55 on line 7 NULL
Output for 4.3.0 - 4.3.2
Warning: Wrong parameter count for preg_match() in /in/e0X55 on line 5 Notice: Undefined variable: subdomain in /in/e0X55 on line 7 NULL

preferences:
310.48 ms | 401 KiB | 417 Q