2007年国庆祝福短信集锦
从腾讯QQ的一路抄袭说起
<HTML>
<HEAD>
<TITLE>PHP的几个常用数字判断函数</TITLE>
</HEAD>
<BODY>
<?
//判断变量是否是数组
$colors = array("red", "blue", "green");
if(is_array($colors))
{
print("colors is an array"."<br>");
}
//判断是否是双精度数
$Temperature = 15.23;
if(is_double($Temperature))
{
print("Temperature is a double"."<br>");
}
//判断是否是整数
$PageCount = 2234;
if(is_integer($PageCount))
{
print("$PageCount is an integer"."<br>");
}
//判断是否是对象
class widget
{
var $name;
var $length;
}
$thing = new widget;
if(is_object($thing))
{
print("thing is an object"."<br>");
}
//判断是否是字符串
$Greeting = "Hello";
if(is_string($Greeting))
{
print("Greeting is a string"."<br>");
}
?>
</BODY>
</HTML>
2007-10-7 16:41 | 分类: 
