What is the usage of session in laravel?

Usage: 1. Store data, the syntax is "session()->put('key1', 'value1')"; 2. Get data, the syntax is "session()->all( )"; 3. Clear or delete data, the syntax is "session()->pull('key3');".

#The operating environment of this article: Windows 10 system, Laravel version 6, Dell G3 computer.

What is the usage of session in laravel

1. Store data

Store a single piece of data. The following two writing methods have the same function. Use session( ) as an example to demonstrate

$request->session()->put('key1', 'value1'); session()->put('key2', 'value2');

Storage array

for ($i=1;$i<=10;$i++) { session()->push('key4', 'name_'.$i); }

session temporary data (data can only be accessed once)

session()->flash('key5', 'value5'); Session()->reflash();//在all()、get()等方法前调用该方法，闪存数据会一直保存

2. Get data

Get all data

session()->all();

Get a single piece of data based on the key, the second parameter is the default value

session()->get('key5', 'default_value');

3. Clear or delete the data

Delete data based on key and return

session()->pull('key3');

Delete key

session()->forget('key3');

Clear all sessions

session()->flush();

4. Determine whether the session exists

session()->has('key4')

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