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PHP Returning Values from Function

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In this tutorial we will study about returning values from functions in PHP, how to return values from a function, what kind of data types are supported by the return statement are discussed in this tutorial. Examples in this tutorial will make it more clear.

Returnig Values from function:

From a function we can return values using optional return statement, in PHP we can return arrays, objects. With the help of the return statement the control moves back to the calling portion of the project. If we do not put any return statement then a NULL value is returned. A function can not have more than one return statement because whenever a return statement occurs rest of the statements are ignored by the parser.  To know more about return statement please visit our site:

www.roseindia.net/tutorial/php/phpbasics/tutorial/PHP-Return.html

Example:

<?php

function square($var){

return $var*$var;

}

echo "Square of 2 is: ".square(2);

?>

Output:

Square of 2 is: 4

Example:

<?php

function fun(){

return array(0,1,2);

}

list($var1,$var2,$var3)=fun();

echo "Value of \$var1= ".$var1."<br/>";

echo "Value of \$var2= ".$var2."<br/>";

echo "Value of \$var3= ".$var3."<br/>";

?>

Output:

Value of $var1= 0
Value of $var2= 1
Value of $var3= 2

 

 

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Posted on: March 29, 2010 If you enjoyed this post then why not add us on Google+? Add us to your Circles

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