Using a Function Call to Pass an Argument to a Function by Reference : Parameters « Functions « PHP






  1. PHP
  2. Functions
  3. Parameters

Using a Function Call to Pass an Argument to a Function by Reference


<html>
<head>
<title>Using a Function Call to Pass an Argument to a Function by Reference</title>
</head>
<body>
<?php
function addFive( $num ){
     $num += 5;
}
$orignum = 20;
addFive( &$orignum );
print( $orignum );
?>
</body>
</html>








Related examples in the same category

1.Functions and References
2.A function that takes a reference for an argument
3.Declaring a Function with Arguments
4.Function with default parameters
5.Passing Variables as a Reference to the Argument of a Function
6.Passing an Argument to a Function by Value
7.Declaring a Function That Requires Arguments
8.Function with an Optional Argument
9.A Function with an Optional Argument
10.Accessing Function Parameters
11.All optional arguments
12.Capturing a return value
13.Changing argument values
14.Defining and Calling a two-argument function,
15.Function Arguments
16.Function with two parameters
17.Creating Functions That Take a Variable Number of Arguments
18.Creating a capitalize function with a default parameter $each
19.Default Parameters
20.Define whether a variable is passed by value or reference
21.Passing By Reference
22.Making arguments be passed by reference
23.Using Optional Parameters