3v4l.org

run code in 300+ PHP versions simultaneously
<?php function change_key( $array, $old_key, $new_key) { if( ! array_key_exists( $old_key, $array ) ) return $array; $keys = array_keys( $array ); $keys[ array_search( $old_key, $keys ) ] = $new_key; return array_combine( $keys, $array ); } $array = array( 'a' => 1, 'b' => 2, 'c' => 3 ); var_dump($array); $array = change_key($array, 'b', 'd'); var_dump($array);
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
array(3) { ["a"]=> int(1) ["b"]=> int(2) ["c"]=> int(3) } array(3) { ["a"]=> int(1) ["d"]=> int(2) ["c"]=> int(3) }
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 array(3) { ["a"]=> int(1) ["b"]=> int(2) ["c"]=> int(3) } array(3) { ["a"]=> int(1) ["d"]=> int(2) ["c"]=> int(3) }
Output for 4.4.5 - 4.4.9
array(3) { ["a"]=> int(1) ["b"]=> int(2) ["c"]=> int(3) } Fatal error: Call to undefined function: array_combine() in /in/CVadG on line 11
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
array(3) { ["a"]=> int(1) ["b"]=> int(2) ["c"]=> int(3) } Fatal error: Call to undefined function: array_combine() in /in/CVadG on line 11
Process exited with code 255.
Output for 4.3.0 - 4.3.1
array(3) { ["a"]=> int(1) ["b"]=> int(2) ["c"]=> int(3) } Fatal error: Call to undefined function: array_combine() in /in/CVadG on line 11
preferences:
198.22 ms | 401 KiB | 357 Q