A Function with an Optional Argument : Parameters « Functions « PHP

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PHP » Functions » Parameters

A Function with an Optional Argument


 

<html>

<body>

<?php

    function headingWrap( $txt, $size=3 ) {

      print "<h$size>$txt</h$size>";

    }

    headingWrap("Book title", 1);

?>

</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.	Using a Function Call to Pass an Argument to a Function by Reference
8.	Declaring a Function That Requires Arguments
9.	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

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