3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (PHP_VERSION !== '7.1.6') die('Meh'); function kv(& $a) { $b = $a; end($b); $kv = [$k = key($b), current($b)]; // unset($b); // TRICKY: We must unset $b before modifying $a to avoid copy-on-write for $a. unset($a[$k]); return $kv; } $a = range(1, 2000000); next($a); next($a); echo current($a) . PHP_EOL; var_dump($a); var_dump(kv($a)); echo current($a) . PHP_EOL; var_dump($a);
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.5, 7.1.7 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Meh
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 Meh
Output for 7.1.6
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 67108872 bytes) in /in/Nhfaf on line 13
Process exited with code 255.
preferences:
186.26 ms | 401 KiB | 291 Q