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run code in 300+ PHP versions simultaneously
<?php $arr = array(1,2,3,4,5); foreach($arr as $key => $row) { echo key($arr), '=>', current($arr), "\r\n"; } echo key($arr), '=>', current($arr), "\r\n";
Output for 4.3.0 - 4.3.11, 4.4.0, 4.4.2 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.3, 7.0.0 - 7.0.20, 7.1.0 - 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 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
0=>1 0=>1 0=>1 0=>1 0=>1 0=>1
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 0=>1 0=>1 0=>1 0=>1 0=>1 0=>1
Output for 5.2.4 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.37, 5.6.0 - 5.6.28
1=>2 1=>2 1=>2 1=>2 1=>2 1=>2
Output for 4.4.1
1=>2 2=>3 3=>4 4=>5 => =>
preferences:
288.48 ms | 401 KiB | 379 Q