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<?php $foo = $bar = new \stdClass; $baz = new \stdClass; $a = array( $foo, $bar, $baz ); var_dump(array_unique($a, SORT_REGULAR)); var_dump(array_unique($a));
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array(1) { [0]=> object(stdClass)#1 (0) { } } Fatal error: Uncaught Error: Object of class stdClass could not be converted to string in /in/DeHIj:13 Stack trace: #0 /in/DeHIj(13): array_unique(Array) #1 {main} thrown in /in/DeHIj on line 13
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
array(1) { [0]=> object(stdClass)#1 (0) { } } Recoverable fatal error: Object of class stdClass could not be converted to string in /in/DeHIj on line 13
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20
array(1) { [0]=> object(stdClass)#1 (0) { } } Catchable fatal error: Object of class stdClass could not be converted to string in /in/DeHIj on line 13
Process exited with code 255.

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