This chapter deals with the information about the authentication process available in CakePHP.
CakePHP Services
CakePHP Services is the process of identifying the correct user. CakePHP supports three types of authentication.
FormAuthenticate − It allows you to authenticate users based on form POST data. Usually, this is a login form that users enter information into. This is default authentication method.
BasicAuthenticate − It allows you to authenticate users using Basic HTTP authentication
DigestAuthenticate − It allows you to authenticate users using Digest HTTP authentication.
Example for FormCakePHP Services
Make changes in the config/routes.php file as shown in the following code.
config/routes.php
<?php use Cake\Core\Plugin; use Cake\Routing\RouteBuilder; use Cake\Routing\Router; Router::defaultRouteClass('DashedRoute'); Router::scope('/', function (RouteBuilder $routes) { $routes->connect('/auth',['controller'=>'Authexs','action'=>'index']); $routes->connect('/login',['controller'=>'Authexs','action'=>'login']); $routes->connect('/logout',['controller'=>'Authexs','action'=>'logout']); $routes->fallbacks('DashedRoute'); }); Plugin::routes();
Change the code of AppController.php file as shown in the following program.
src/Controller/AppController.php
<?php namespace App\Controller; use Cake\Controller\Controller; use Cake\Event\Event; use Cake\Controller\Component\AuthComponent; class AppController extends Controller { public function initialize() { parent::initialize(); $this->loadComponent('RequestHandler'); $this->loadComponent('Flash'); $this->loadComponent('Auth', [ 'authenticate' => [ 'Form' => [ 'fields' => [ 'username' => 'username', 'password' => 'password' ] ] ], 'loginAction' => [ 'controller' => 'Authexs', 'action' => 'login' ], 'loginRedirect' => [ 'controller' => 'Authexs', 'action' => 'index' ], 'logoutRedirect' => [ 'controller' => 'Authexs', 'action' => 'login' ] ]); } public function beforeFilter(Event $event) { $this->Auth->allow(['index','view']); $this->set('loggedIn', $this->Auth->user()); } }
Create AuthexsController.php file at src/Controller/AuthexsController.php. Copy the following code in the controller file.
src/Controller/AuthexsController.php
<?php namespace App\Controller; use App\Controller\AppController; use Cake\ORM\TableRegistry; use Cake\Datasource\ConnectionManager; use Cake\Event\Event; use Cake\Auth\DefaultPasswordHasher; class AuthexsController extends AppController { var $components = array('Auth'); public function index(){ } public function login(){ if($this->request->is('post')) { $user = $this->Auth->identify(); if($user){ $this->Auth->setUser($user); return $this->redirect($this->Auth->redirectUrl()); } else $this->Flash->error('Your username or password is incorrect.'); } } public function logout(){ return $this->redirect($this->Auth->logout()); } } ?>
Create a directory Authexs at src/Template and under that directory create a View file called login.php. Copy the following code in that file.
src/Template/Authexs/login.php
<?php echo $this->Form->create(); echo $this->Form->control('username'); echo $this->Form->control('password'); echo $this->Form->button('Submit'); echo $this->Form->end(); ?>
Create another View file called logout.php. Copy the following code in that file.
src/Template/Authexs/logout.php
You are successfully logged out.
Create another View file called index.php. Copy the following code in that file.
src/Template/Authexs/index.php
You are successfully logged in. <?php echo $this->Html->link('logout',[ "controller" => "Authexs","action" => "logout" ]); ?>
Execute the above example by visiting the following URL.
http://localhost/cakephp4/auth
Output
As the authentication has been implemented, and once you try to visit the above URL, you will be redirected to the login page as shown below.

After providing the correct credentials, you will be logged in and redirected to the screen as shown below.

After clicking on the logout link, you will be redirected to the login screen again.
The above is the detailed content of CakePHP Services. For more information, please follow other related articles on the PHP Chinese website!

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。

方法:1、用“str_replace(" ","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\ \;||\xc2\xa0)/","其他字符",$str)”语句。

php判断有没有小数点的方法:1、使用“strpos(数字字符串,'.')”语法,如果返回小数点在字符串中第一次出现的位置,则有小数点;2、使用“strrpos(数字字符串,'.')”语句,如果返回小数点在字符串中最后一次出现的位置,则有。

在php中,可以使用substr()函数来读取字符串后几个字符,只需要将该函数的第二个参数设置为负值,第三个参数省略即可;语法为“substr(字符串,-n)”,表示读取从字符串结尾处向前数第n个字符开始,直到字符串结尾的全部字符。


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