SESSION信息保存在哪个文件目录下以及能够用来保存什么类型的数据
1.SESSION信息保存在哪?
复制代码 代码如下:
session_start();
$_SESSION['name']='marcofly';
?>
session默认是保存到c:\windows\temp目录下,但是通过修改php.ini中的session.save_path值可以改变session的保存路径。
如:session.save_path = "d:/wamp/tmp"
执行该代码后,就会在d:/wamp/tmp目录下,新增一个文件名为:sess_***的文件,打开之后,内容如下:name|s:8:"marcofly";
文件内容解释:
name:key
s:保存类型是字符串
8:字符串长度
marcofly:value
2.SESSION能够保存什么类型的数据呢?
如前一个例子所示,session能保存字符串,不仅如此,session还能保存整型(int),布尔型(bool),数组(array),而且,session还能保存对象
我们通过一个例子来简单的看下:
复制代码 代码如下:
session_start();
$_SESSION['name']='marcofly';//字符串
$_SESSION['int']='10';//整型
$_SESSION['bool']=True;//布尔型
$_SESSION['array']=array('name'=>'marcofly','age'=>'23');//数组
class test{
public $msg;
public function __construct(){
$this->msg="Hello World";
}
}
$obj=new test();
$_SESSION['obj']=$obj;//对象
?>
结果如下:
name|s:8:"marcofly";
int|s:2:"10";
bool|b:1;
array|a:2:{s:4:"name";s:8:"marcofly";s:3:"age";s:2:"23";}
obj|O:4:"test":1:{s:3:"msg";s:11:"Hello World";}

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