PHP Tips: Function Overloading_PHP Tutorial

1. You can use the two functions func_get_args() and func_num_args() to implement function overloading!!

PHP code:

Copy code The code is as follows:

function rewrite() {
$args = func_get_args();
if(func_num_args() == 1) {
func1($args[0]);
} else if(func_num_args() == 2) {
fun c2($args[0], $args [1]);
                                                                {
echo $arg1, ' ', $arg2;
}
rewrite('PHP'); //Call func1
rewrite('PHP','China'); //Call func2



2. Use the default value to get the results you want based on the input:

Copy code

The code is as follows:

function test($name="Xiao Li",$age="23") { echo $name." ".$age; } }

test();
echo "
";
test("a") ;
echo "
";
test("a","b");

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truehttp: //www.bkjia.com/PHPjc/779164.htmlTechArticle1. You can use the two functions func_get_args() and func_num_args() to implement function overloading!! PHP code : Copy the code as follows: function rewrite() { $args = func_get_args(); if(func_...