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php定义一个参数带有默认值的函数实例分析_php技巧

WBOY
WBOYOriginal
2016-05-16 20:20:52929browse

本文实例分析了php定义一个参数带有默认值的函数用法。分享给大家供大家参考。具体分析如下:

php的函数参数可以指定默认值,指定默认值后,调用时如果不给该参数赋值,则该参数就使用默认值

<&#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;>

希望本文所述对大家的php程序设计有所帮助。

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