Function Overloading
Function Overloading :
1. Cannot redeclare in a function in
php.
2. In other programing language
programes if there exists more than one function with same name but with the
different signatures the function calling signature should be matching with
function definition signature. That means function overloading is happening
through function calling and function deffinitions.
3. In a php program it is not posible
to redeclare a function. That means it is not possible to have more than one
function with the same name in a single php programe, so function overloading
is happening through function calling.
<?php
function
display($x=0 , $y=0)
{
echo
$x."--".$y."<br>";
}
?>
<?php
echo
"<h1>";
display("india","tech");
display(12,
20);
display(1,
2,3);
display("sunil");
display();
?>
Output:
india--tech
12--20 1--2 sunil--0 0—0
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