常用的对象类型判断
常用的数值判断函数
//判断数组
$colors = array(red, blue, green);
if(is_array($colors))
{
print(colors is an array.
);
}
//双精度数判断
$temperature = 15.23;
if(is_double($temperature))
{
print(temperature is a double.
);
}
//整数判断
$pagecount = 2234;
if(is_integer($pagecount))
{
print($pagecount is an integer.
);
}
//对象判断
class widget
{
var $name;
var $length;
}
$thing = new widget;
if(is_object($thing))
{
print(thing is an object.
);
}
//字符判断
$greeting = hello;
if(is_string($greeting))
{
print(greeting is a string.
);
}
?>
http://www.bkjia.com/phpjc/509204.htmlwww.bkjia.comtruehttp://www.bkjia.com/phpjc/509204.htmltecharticle常用的对象类型判断 html head title常用的数值判断函数/title /head body ? //判断数组 $colors = array(red, blue, green); if(is_array($colors)) { print(col...