PHP Functions

 

PHP Functions

Learn How To Create Functions in PHP.

Function are of Four Types :-

a. No Argument With No Return Type

b.No Argument With Return Type

c.Argument With No Return type

d.Argument With return Type

Now Lets Start.

Example of function :-

function hello() // create function hello

{

//body and scope of function

}

1. No Argument With No Return Type

Code : -

<?php

function hello() // Create a function hello with no argument

{

echo “Calling Function hello”;

}

hello(); // Calling Function hello

// Output : Calling Function Hello

?>

2. No Argument With Return Type

Code : -

<?php

function hello() // Create a function hello with no argument

{

$str=“Calling Function hello”;

return $str; // Return Value

}

echo hello(); // Calling Function hello Here We Use Echo To Print

//Because it Only Return Value Not Print it

// Output : Calling Function Hello

?>

3. Argument With No Return Type

Code : -

<?php

function hello($a) // Create a function hello with argument

{

echo $a; // Print Value

}

$ab=”hello test”;

hello($ab); // Calling Function hello With Parameter $ab

// Output : hello test

?>

4. Argument With Return Type

Code : -

<?php

function hello($a) // Create a function hello with argument

{

$a=ucfirst($a);

return $a; // Return Value

}

$ab=”hello test”;

$out=hello($ab); // Calling Function hello With Parameter $ab

echo $out; // Output : Hello test Here first letter of word is capitalize

?>

Thank You