3v4l.org

run code in 300+ PHP versions simultaneously
<?php $regex = '(((?!a).)*)*a\\{'; $test_string = 'AAAAAAAAAAAAAA{AA'; echo "1:".mb_ereg_replace($regex,'WORKED',$test_string)."\n"; $test_string = 'AAAAAAAAAAAAAA{AA'; echo "2:".preg_replace('/(*UTF8)'.$regex.'/u','WORKED',$test_string)."\n"; $test_string = 'AAAAAAAAAAAAAA{AA'; echo "3:".preg_replace('/'.$regex.'/','WORKED',$test_string)."\n";
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
1:AAAAAAAAAAAAAA{AA 2:AAAAAAAAAAAAAA{AA 3:AAAAAAAAAAAAAA{AA
Output for 5.2.10 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.21
1:AAAAAAAAAAAAAA{AA 2: 3:
Output for 5.2.5 - 5.2.9
1:AAAAAAAAAAAAAA{AA Warning: preg_replace(): Compilation failed: (*VERB) not recognized at offset 5 in /in/1s3nT on line 7 2: 3:
Output for 5.2.0 - 5.2.1, 5.2.4
1:AAAAAAAAAAAAAA{AA Warning: preg_replace(): Compilation failed: nothing to repeat at offset 1 in /in/1s3nT on line 7 2: 3:
Output for 4.4.6 - 4.4.8, 5.2.2 - 5.2.3
1:AAAAAAAAAAAAAA{AA Warning: preg_replace(): Compilation failed: nothing to repeat at offset 1 in /in/1s3nT on line 7 2:
Process exited with code 139.
Output for 4.3.11, 4.4.0 - 4.4.5, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
1:AAAAAAAAAAAAAA{AA Warning: preg_replace(): Compilation failed: nothing to repeat at offset 1 in /in/1s3nT on line 7 2: 3:AAAAAAAAAAAAAA{AA
Output for 4.4.9
1:AAAAAAAAAAAAAA{AA Warning: preg_replace(): Compilation failed: (*VERB) not recognized at offset 5 in /in/1s3nT on line 7 2: 3:AAAAAAAAAAAAAA{AA
Output for 4.3.4 - 4.3.10
1:AAAAAAAAAAAAAA{AA Warning: Compilation failed: nothing to repeat at offset 1 in /in/1s3nT on line 7 2: 3:AAAAAAAAAAAAAA{AA
Output for 4.3.2 - 4.3.3
Fatal error: Call to undefined function: mb_ereg_replace() in /in/1s3nT on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: mb_ereg_replace() in /in/1s3nT on line 5
preferences:
279.13 ms | 401 KiB | 356 Q