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run code in 300+ PHP versions simultaneously
<?php $rx = "^.+(?:@\..+)? $"; $ip = '8.8.8.8'; $mary = 'mary@'.$ip; $g = 'google.com:80/test?abc=123#a1'; $c = 'john:smith@8.8.8.8:80/test?abc=123#a1'; preg_match("/$rx/",$ip,$matches); echo $matches[0],"\n"; preg_match("/$rx/",$mary,$matches); echo $matches[0],"\n"; preg_match("/$rx/",$g,$matches); echo $matches[0],"\n"; preg_match("/$rx/",$c,$matches); echo $matches[0];
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
Warning: Undefined array key 0 in /in/XnSHP on line 10 Warning: Undefined array key 0 in /in/XnSHP on line 14 Warning: Undefined array key 0 in /in/XnSHP on line 18 Warning: Undefined array key 0 in /in/XnSHP on line 21
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.5 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined offset: 0 in /in/XnSHP on line 10 Notice: Undefined offset: 0 in /in/XnSHP on line 14 Notice: Undefined offset: 0 in /in/XnSHP on line 18 Notice: Undefined offset: 0 in /in/XnSHP on line 21
Output for 7.3.32 - 7.3.33
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Notice: Undefined offset: 0 in /in/XnSHP on line 10 Notice: Undefined offset: 0 in /in/XnSHP on line 14 Notice: Undefined offset: 0 in /in/XnSHP on line 18 Notice: Undefined offset: 0 in /in/XnSHP on line 21

preferences:
250.74 ms | 403 KiB | 311 Q