PHP function func_num_args usage example analysis_php skills

The example in this article describes the usage of PHP function func_num_args. Share it with everyone for your reference, the details are as follows:

function foo()
{
   $numargs = func_num_args();//返回这个函数所含的参数
   echo "Num fo argumets : $numargs <br>\n";
   $arr=func_get_args();//返回一个数组给$arr
   print_r($arr);//输出这个数组所有的参数
   echo "<hr>";
   for($i=0;$i<=$numargs;$i++)
   {
       echo $arr[$i]."<br>";
   }
}
foo(1,2,3,45,6);

The running results are as follows:

Num fo argumets : 5 
Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 45 [4] => 6 ) 
--------------------------------------------------------------------------------
1
2
3
45
6

I hope this article will be helpful to everyone in php programming.