1--TEST-- 2func_num_args() tests 3--FILE-- 4<?php 5 6function test1() { 7 var_dump(func_num_args()); 8} 9 10function test2($a) { 11 var_dump(func_num_args()); 12} 13 14function test3($a, $b) { 15 var_dump(func_num_args()); 16} 17 18test1(); 19test2(1); 20test2(); 21test3(1,2); 22 23call_user_func("test1"); 24call_user_func("test3", 1); 25call_user_func("test3", 1, 2); 26 27class test { 28 static function test1($a) { 29 var_dump(func_num_args()); 30 } 31} 32 33test::test1(1); 34var_dump(func_num_args()); 35 36echo "Done\n"; 37?> 38--EXPECTF-- 39int(0) 40int(1) 41 42Warning: Missing argument 1 for test2(), called in %s on line %d 43int(0) 44int(2) 45int(0) 46 47Warning: Missing argument 2 for test3() in %s on line %d 48int(1) 49int(2) 50int(1) 51 52Warning: func_num_args(): Called from the global scope - no function context in %s on line %d 53int(-1) 54Done 55
