3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A {}; $a = new A(); class B {}; $b = new B(); $array = array(); for($i=0; $i<28; $i++) $array[$i] = $a; $array[0] = $array[26] = $b; $array = array_unique($array,SORT_REGULAR); print_r($array);
Output for 7.0.0 - 7.0.25, 7.1.0 - 7.1.25, 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 ( [0] => B Object ( ) [1] => A Object ( ) [2] => A Object ( ) [13] => A Object ( ) [26] => B Object ( ) )
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 ( [0] => B Object ( ) [1] => A Object ( ) [2] => A Object ( ) [13] => A Object ( ) [26] => B Object ( ) )
Output for 5.2.9 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30
Array ( [0] => B Object ( ) [1] => A Object ( ) [8] => A Object ( ) [14] => A Object ( ) [26] => B Object ( ) )
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 - 5.2.8
Warning: Wrong parameter count for array_unique() in /in/sE03m on line 14
preferences:
274.95 ms | 402 KiB | 393 Q