code走起来。

namespaceApp\Http\Controllers;

useIlluminate\Http\Request;

classSessionControllerextendsController

{

//关于session操作

public functiongetTest()

{

dd(session('key'));

}

/**

*获取session全局辅助函数session(); http实例Request

*/

public functiongetSession(Request$request)

{

//read

$m=session('sl','ls');var_dump($m);//dd(session('sl'));

$value=$request->session()->get('key','default');//全局session();

//session('key','ss'); var_dump(session('key'));

//session(['name'=>'name']);

$data=$request->session()->all();print_r($data);

//判断

if($request->session()->has('_token'))

{

echo'_token';//key存在且不为null

}

session(['test'=>null]);

if($request->session()->exists('test'))

{

echo'exists';//key存在可能为null

}

//insert

$request->session()->put('xiao','ming');//单个数据

$request->session()->put(['xiao'=>'xiao','ming'=>'ming']);//多个数据

$request->session()->push('arr.a','arra');//多维数组

//dd($request->session()->get('arr')['a']);

//dd(session('arr')['a'][0]);

//delete

$delete=$request->session()->pull('xiao');//delete单个值 并且得到该值

var_dump($delete);

$request->session()->forget('ming');//不会得到删除的值//$delete1=

//var_dump($delete1);

$request->session()->flush();//删除所有的session  //$arrDelete=

//var_dump($arrDelete);

//其他

$request->session()->flash();

$request->session()->reflash();

$request->session()->keep();

$request->session()->regenerate();//重新生成一个sessionId;

var_dump($request->session()->all());

echo'put
';var_dump(session('xiao'));echo'
';

dd($value);

}

public functiongetRequest(Request$request)

{

//insert

if($request->session=='insert')

{

$value=session('key','valuez');//?time? 1指定默认值 并不是赋值

$arrValue=session(['key'=>'sessionrequest']);//insert 2  arr就是赋值 即存值

dd($arrValue);//null

//dd(session('key'));

echosession('key');dd($value);//

}

//read

if($request->session=='read')

{

$value=session('key');

dd($value);

}

//delete

if($request->session=='delete')

{

}

}

}