Function with an Optional Argument : Parameters « Functions « PHP

Function with an Optional Argument

<title>Function with an Optional Argument</title>
function fontWrap( $txt, $size=3 ){
   print "<font size=\"$size\">$txt</font>";

fontWrap("call 1<br>",5);
fontWrap("call 2<br>");
fontWrap("call 3<br>");
fontWrap("call 4<br>");


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.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