php function default value – PHP supports passing arguments by value , passing by reference, and default argument values.
php function default value
PHP allows us to set default argument values for function parameters. Php: Set default value to function argument.
You can set default values to function parameters.
PHP Default Argument Values Function
Example 1
function sayHowDoYouDo($name="Ram"){
echo "HowDoYouDo $name
";
}
sayHowDoYouDo("Meera");
sayHowDoYouDo();//passing no value
sayHowDoYouDo("Vimal");
?>
Results
HowDoYouDo Meera HowDoYouDo Ram HowDoYouDo Vimal
Don’t Miss : How to call function in PHP from another file?
Example 2
function invitationcard($first="Kohali",$last="Sidhupura"){
echo "Welcome: $first $last
";
}
invitationcard();
invitationcard("Karshan");
invitationcard("Dhoni","Mahendrshinh");
?>
Results
Welcome: Meera Sidhupura Welcome: Karshan Sidhupura Welcome: Dhoni Mahendrshinh
Example 3
function add($n1=10,$n2=10){
$n3=$n1+$n2;
echo "Calculation is: $n3
";
}
add();
add(20);
add(40,40);
?>
Results
Calculation is: 20 Calculation is: 30 Calculation is: 80
I hope you get an idea about php function default value.
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