3v4l.org

run code in 300+ PHP versions simultaneously
<?php $gb = 1024 * 1024 * 1024; $str = str_repeat('a', 2 * $gb); var_dump(strlen($str)); // gives int(-2147483648)
Output for 7.0.0 - 7.0.33, 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
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 2147483680 bytes) in /in/fMSSC on line 3
Process exited with code 255.
Output for 7.3.32 - 7.3.33, 8.0.13
Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 2147483680 bytes) in /in/fMSSC on line 3
Process exited with code 255.
Output for 5.4.41 - 5.4.45, 5.5.25 - 5.5.38, 5.6.9 - 5.6.40
Warning: str_repeat(): Result is too big, maximum 2147483647 allowed in /in/fMSSC on line 3 int(0)
Output for 5.2.2 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.40, 5.5.0 - 5.5.24, 5.6.0 - 5.6.8
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 2147483649 bytes) in /in/fMSSC on line 3
Process exited with code 255.
Output for 5.2.1
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate -2147483647 bytes) in /in/fMSSC on line 3
Process exited with code 255.
Output for 5.2.0
Fatal error: Out of memory (allocated 262144) (tried to allocate -2147483647 bytes) in /in/fMSSC on line 3
Process exited with code 255.
Output for 4.4.4 - 4.4.9, 5.1.6
FATAL: emalloc(): Unable to allocate 2147483649 bytes
Process exited with code 1.
Output for 4.3.0 - 4.3.1, 5.1.5

Process exited with code 137.
Output for 4.4.2 - 4.4.3, 5.1.2 - 5.1.4
Warning: str_repeat(): You may not create strings longer than 2147483647 bytes in /in/fMSSC on line 3 int(0)
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5, 5.1.1
Warning: str_repeat(): You may not create strings longer then 2147483647 bytes in /in/fMSSC on line 3 int(0)
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/fMSSC on line 4
Process exited with code 255.

preferences:
272.05 ms | 401 KiB | 460 Q