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run code in 300+ PHP versions simultaneously
<?php error_reporting(0); $arr = array(); for ($i = 0; $i < 1000000; $i++) { $arr[$i] = $i; } foreach ($arr as $k=>$v) { $arr[$k][$k] = $v; }
Output for 5.2.1 - 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, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.1, 8.2.18, 8.3.6

Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
Process exited with code 255.
Output for 8.1.2 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
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, 5.2.0, 7.3.32 - 7.3.33
preferences:
227.53 ms | 402 KiB | 309 Q