3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(ini_get("pcre.backtrack_limit")); ini_set("pcre.backtrack_limit", 100 * 1000); var_dump(preg_match('/TEST/', "aa" . str_repeat("a", 100 * 1000000) . "TEST"));
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
string(7) "1000000" Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 100000032 bytes) in /in/30u2h on line 5
Process exited with code 255.
Output for 7.3.32 - 7.3.33, 8.0.13
string(7) "1000000" Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 100000032 bytes) in /in/30u2h on line 5
Process exited with code 255.
Output for 5.3.7 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
string(7) "1000000" Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 100000001 bytes) in /in/30u2h on line 5
Process exited with code 255.
Output for 5.2.1 - 5.2.17, 5.3.0 - 5.3.6
string(6) "100000" Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 100000001 bytes) in /in/30u2h on line 5
Process exited with code 255.
Output for 5.2.0
string(6) "100000" int(1)
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
string(0) "" int(1)
preferences:
240.45 ms | 402 KiB | 356 Q