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<?php function test() { $x = array_merge(array(1,2,3), (array) func_get_arg(0)); echo print_r($x, 1), "\n"; } test(); test(5);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught ValueError: func_get_arg(): Argument #1 ($position) must be less than the number of the arguments passed to the currently executed function in /in/lGFIn:4 Stack trace: #0 /in/lGFIn(4): func_get_arg(0) #1 /in/lGFIn(8): test() #2 {main} thrown in /in/lGFIn on line 4
Process exited with code 255.
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 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: func_get_arg(): Argument 0 not passed to function in /in/lGFIn on line 4 Array ( [0] => 1 [1] => 2 [2] => 3 [3] => ) Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 5 )
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
Fatal error: func_get_arg(): Can't be used as a function parameter in /in/lGFIn on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: func_get_arg(): Can't be used as a function parameter in /in/lGFIn on line 4

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