The difference between func_get_args(), func_get_arg(), and func_num_args() in PHP_PHP Tutorial

Copy code The code is as follows:

function jb51(){ ());
echo "
";
echo func_get_arg(1);
echo "
";
echo func_num_args();
}

jb51("www","jb51","net");
?>

Output result:

Array ( [0] => blog [1] => micxp [2] => com )

micxp
3

We can see from the above results

func_get_args() This function returns an array containing all the parameters of the current function

func_get_arg() The function returns the value of the parameter at the specified position
func_num_args() This function returns the parameters of the current function The quantity returned is a number

http://www.bkjia.com/PHPjc/313503.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/313503.htmlTechArticleCopy the code as follows: ?php function jb51(){ print_r(func_get_args()); echo "br"; echo func_get_arg(1); echo "br"; echo func_num_args(); } jb51("www","jb51","net"); ? Output results...