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<?php class A { protected $a = 2; } $a = new A(); var_dump($a); $b = null; var_dump(clone $a); var_dump(clone $b);
Output for 7.0.0 - 7.2.0
object(A)#1 (1) { ["a":protected]=> int(2) } object(A)#2 (1) { ["a":protected]=> int(2) } Fatal error: Uncaught Error: __clone method called on non-object in /in/fnhXM:15 Stack trace: #0 {main} thrown in /in/fnhXM on line 15
Process exited with code 255.
Output for 5.3.21 - 5.6.28
object(A)#1 (1) { ["a":protected]=> int(2) } object(A)#2 (1) { ["a":protected]=> int(2) } Fatal error: __clone method called on non-object in /in/fnhXM on line 15
Process exited with code 255.