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<?php function f1(&$v) {} function f2() {$a = array(1,2,3); return $a; } // Both are Fatal error: Only variables can be passed by reference f1((array)f2()); f1(array(f2()));
Output for 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Fatal error: Uncaught Error: f1(): Argument #1 ($v) could not be passed by reference in /in/Ob1o2:6 Stack trace: #0 {main} thrown in /in/Ob1o2 on line 6
Process exited with code 255.
Output for 8.1.23 - 8.1.33, 8.2.10 - 8.2.29
Fatal error: Uncaught Error: f1(): Argument #1 ($v) cannot be passed by reference in /in/Ob1o2:6 Stack trace: #0 {main} thrown in /in/Ob1o2 on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.35
Fatal error: Only variables can be passed by reference in /in/Ob1o2 on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Only variables can be passed by reference in /in/Ob1o2 on line 6

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