3v4l.org

run code in 300+ PHP versions simultaneously
<?php $regex = '(((?!a).)*)*a\\{'; $test_string = 'AAAAAAAAAAAAAA{AA'; echo "1:".mb_ereg_match($regex,'WORKED',$test_string)."\n"; echo "2:".preg_match('/'.$regex.'/u','WORKED',$test_string)."\n"; echo "3:".preg_match('/'.$regex.'/','WORKED',$test_string)."\n";
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 ValueError: Option "A" is not supported in /in/bdLek:4 Stack trace: #0 /in/bdLek(4): mb_ereg_match('(((?!a).)*)*a\\{', 'WORKED', 'AAAAAAAAAAAAAA{...') #1 {main} thrown in /in/bdLek on line 4
Process exited with code 255.
Output for 4.3.4 - 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, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 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
1: 2:0 3:0
Output for 4.3.2 - 4.3.3
Fatal error: Call to undefined function: mb_ereg_match() in /in/bdLek on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: mb_ereg_match() in /in/bdLek on line 4

preferences:
265.94 ms | 401 KiB | 460 Q