3v4l.org

run code in 300+ PHP versions simultaneously
<?php $parents = [1 => 0, 2 => 1, 3 => 2]; $cache = [1 => 5, 2 => 4, 3 => 3]; function count_posts($category_id, $parents, $cache) { $sum = 0; foreach ($parents as $child) { $sum += count_posts($child, $parents, $child); } $sum += $cache[$category_id]; return $sum; } count_posts(1, $parents, $cache);
Output for 7.4.3 - 7.4.33, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.1, 8.1.28, 8.2.18, 8.3.5 - 8.3.6
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 262144 bytes) in /in/QHqBH on line 9
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 31457280 bytes) (tried to allocate 262144 bytes) in /in/QHqBH on line 9 mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
Output for 8.1.2 - 8.1.27
Fatal error: Out of memory (allocated 31457280) (tried to allocate 262144 bytes) in /in/QHqBH on line 9 mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
Output for 8.0.13
Fatal error: Out of memory (allocated 130023424) (tried to allocate 262144 bytes) in /in/QHqBH on line 9 mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
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 - 7.4.1
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 262144 bytes) in /in/QHqBH on line 8
Process exited with code 255.
Output for 7.3.32 - 7.3.33
Fatal error: Out of memory (allocated 130023424) (tried to allocate 262144 bytes) in /in/QHqBH on line 8 mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 72 bytes) in /in/QHqBH on line 8
Process exited with code 255.
preferences:
199.58 ms | 402 KiB | 330 Q