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<?php function x($a = 1) { var_dump(func_num_args()); } x(); x(1); x(1,2); x(1,2,3,4); x(1,2,3,4,5);
Output for git.master, git.master_jit, rfc.property-hooks
int(0) int(1) int(2) int(4) int(5)

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