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<?php $range = range(0, 2000000); $var = join('', $range); var_dump(strlen($var)); $$var = 4; var_dump($$var);
Output for 8.2.18, 8.3.5 - 8.3.6
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 32000016 bytes) in /in/WSuL0 on line 3
Process exited with code 255.
Output for 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Out of memory (allocated 2097152 bytes) (tried to allocate 33554440 bytes) in /in/WSuL0 on line 2 mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 67108872 bytes) in /in/WSuL0 on line 2
Process exited with code 255.
Output for 7.3.32 - 7.3.33, 8.0.13
int(12888897) int(4)
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 32 bytes) in /in/WSuL0 on line 2
Process exited with code 255.

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