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_<?php function test($var1, $var2 = false) { var_dump($var1, $var2); } function testProxy() { call_user_func_array('test', func_get_args()); } testProxy();
Output for 7.1.0
_ Fatal error: Uncaught ArgumentCountError: Too few arguments to function test(), 0 passed in /in/ZEIge on line 12 and at least 1 expected in /in/ZEIge:4 Stack trace: #0 /in/ZEIge(12): test() #1 /in/ZEIge(16): testProxy() #2 {main} thrown in /in/ZEIge on line 4
Process exited with code 255.
Output for 7.0.0 - 7.0.14
_ Warning: Missing argument 1 for test(), called in /in/ZEIge on line 12 and defined in /in/ZEIge on line 4 Notice: Undefined variable: var1 in /in/ZEIge on line 6 NULL bool(false)
Output for hhvm-3.12.0
_ Warning: test() expects at least 1 parameter, 0 given in /in/ZEIge on line 4 Notice: Undefined variable: var1 in /in/ZEIge on line 6 NULL bool(false)
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.3.0 - 5.6.28
_ Warning: Missing argument 1 for test() in /in/ZEIge on line 4 Notice: Undefined variable: var1 in /in/ZEIge on line 6 NULL bool(false)
Output for 4.3.2 - 5.2.17
_ Fatal error: func_get_args(): Can't be used as a function parameter in /in/ZEIge on line 12
Process exited with code 255.
Output for 4.3.0 - 4.3.1
_ Fatal error: func_get_args(): Can't be used as a function parameter in /in/ZEIge on line 12