PHP defines a function instance analysis with a parameter with a default value, default value instance analysis_PHP tutorial

PHP defines a function parameter with a default value and analyzes the example. Default value example analysis

This article analyzes the usage of a function in PHP that defines a parameter with a default value. Share it with everyone for your reference. The specific analysis is as follows:

PHP function parameters can specify default values. After specifying the default value, if you do not assign a value to the parameter when calling, the parameter will use the default value

<&#63;php
function capitalize( $str, $each=TRUE ) {
 $str = strtolower($str);
 if ($each === TRUE) {   $str = ucwords ($str);
 } else {
   $str = strtoupper($str); }
 echo ("$str <br />");
}
capitalize("hEllo WoRld!");
capitalize("hEllo WoRld!",FALSE);
&#63;>

I hope this article will be helpful to everyone’s PHP programming design.