defaultFunction.php

<?php

function info($name = "no name", $family = "no family name", $age = "0"){
	
	echo "hi my name is: $name $family and I'm $age";
	
}
info("Rasoul", "Vatanparast", 22);
echo "<br />";
info();

/*
output: 
hi my name is: Rasoul Vatanparast and I'm 22
hi my name is: no name no family name and I'm 0
*/

?>