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<?php function barber($type) { echo "You wanted a $type haircut, no problem\n"; } call_user_func('barber', "mushroom"); call_user_func('barber', "shave"); call_user_func('woops', "poopy");
Output for git.master, git.master_jit, rfc.property-hooks
You wanted a mushroom haircut, no problem You wanted a shave haircut, no problem Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, function "woops" not found or invalid function name in /in/nf0Hu:8 Stack trace: #0 {main} thrown in /in/nf0Hu on line 8
Process exited with code 255.

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