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<?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)); echo $foo;
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Array ( [0] => MyClass Object ( [prop] => test1 ) [2] => MyClass Object ( [prop] => test2 ) ) Fatal error: Uncaught Error: Object of class MyClass could not be converted to string in /in/iuT8c:19 Stack trace: #0 {main} thrown in /in/iuT8c on line 19
Process exited with code 255.
Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Array ( [0] => MyClass Object ( [prop] => test1 ) [2] => MyClass Object ( [prop] => test2 ) ) Recoverable fatal error: Object of class MyClass could not be converted to string in /in/iuT8c on line 19
Process exited with code 255.
Output for 5.2.9 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20
Array ( [0] => MyClass Object ( [prop] => test1 ) [2] => MyClass Object ( [prop] => test2 ) ) Catchable fatal error: Object of class MyClass could not be converted to string in /in/iuT8c on line 19
Process exited with code 255.
Output for 5.2.0 - 5.2.8
Warning: Wrong parameter count for array_unique() in /in/iuT8c on line 17 Catchable fatal error: Object of class MyClass could not be converted to string in /in/iuT8c on line 19
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Warning: Wrong parameter count for array_unique() in /in/iuT8c on line 17 Object id #1
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/iuT8c on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/iuT8c on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/iuT8c on line 4
Process exited with code 255.

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