3v4l.org

run code in 300+ PHP versions simultaneously
<?php class MyClass { public $prop; } $foo = new MyClass(); $foo->prop = 'test1'; $bar = $foo; $bam = new MyClass(); $bam->prop = 'test2'; $test = array($foo, $bar, $bam); print_r(array_unique($test, SORT_REGULAR));
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.27, 8.1.0 - 8.1.14, 8.2.0 - 8.2.1
Array ( [0] => MyClass Object ( [prop] => test1 ) [2] => MyClass Object ( [prop] => test2 ) )

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83.95 ms | 408 KiB | 5 Q