API is a calling interface left by the operating system to the application program. The application program calls the operating system's API to cause the operating system to execute the application program's commands (actions). This article mainly shares with you a detailed introduction to the API interface of PHP, hoping to help everyone.
1. Brief description:
Api interface development is actually similar to the usual development logic; but there are also slight differences;
The idea of using mvc to develop websites is generally The controller calls the model, the model returns the data, and then the controller puts the data into the view and displays it to the user;
api development is: use the controller to call the model, the model returns the data, and when there is a controller Output json format string or XML string;
2. Logic code:
Micro mvc structure: controller controller, modal model, view view, db class (class for accessing data)
<?php 2 3 class TestController{ 4 private $db = null; 5 6 function __construct(){ 7 require './db.class.php'; 8 $this -> db = new db(); 9 } 10 11 /** 12 * @desc 返回数据 13 * @author wzh 14 * @date 2017-02-19 15 * @qq 646943067 16 */ 17 private function jsonReturn($data){ 18 $return = array( 19 'status' => 200, /* 返回状态,200 成功,500失败 */ 20 'data' => $data, 21 'message' => '获取成功', 22 ); 23 echo json_encode($return);die; 24 } 25 26 /** 27 * @desc 返回数据 28 * @author wzh 29 * @date 2017-02-19 30 * @qq 646943067 31 */ 32 private function success($message){ 33 $return = array( 34 'status' => 200, /* 返回状态,200 成功,500失败 */ 35 'message' => $message, 36 ); 37 echo json_encode($return);die; 38 } 39 40 41 /** 42 * @desc 返回数据 43 * @author wzh 44 * @date 2017-02-19 45 * @qq 646943067 46 */ 47 private function error($message){ 48 $return = array( 49 'status' => 500, /* 返回状态,200 成功,500失败 */ 50 'message' => $message, 51 ); 52 echo json_encode($return);die; 53 } 54 55 56 /** 57 * @desc 测试api接口 根据 班级id获取该班级下的所有学员 58 * @author wzh 59 * @version 1.0 60 * @date 2017-02-19 61 */ 62 public function getList(){ 63 $class_id = (int) $_GET['class_id']; 64 $sql = " select student_id,student_name,gander from student where class_id = '$class_id' and is_delete = 0 "; 65 $list = $this -> db -> getAll($sql); 66 if(empty($list)){ 67 $this -> error('暂无数据'); 68 } 69 $data['list'] = $list; 70 $this -> jsonReturn($data); 71 } 72 73 /** 74 * @desc 测试api接口 获取该学员 是否 已经打卡 75 * @author wzh 76 * @version 1.0 77 * @date 2017-02-19 78 * @qq 646943067 79 */ 80 public function getSignStatus(){ 81 $student_id = (int) $_GET['student_id']; 82 $time = time(); 83 $start_time = strtotime(date('Y-m-d',$time) . ' 00:00:00'); 84 $end_time = $start_time = 3600 * 24; 85 $sql = " select status from student_status where student_id = '$student_id' "; 86 $status = $this -> db -> getOne($sql); 87 if($status == 1){ 88 $this -> success('已打卡'); 89 }else{ 90 $this -> error('未打卡'); 91 } 92 } 93 94 }
Summary: From the above code, we can see that the logic of writing code is the same as usual.
Related recommendations:
How to perform API interface testing locally
Implementation of api interface security verification function
The above is the detailed content of Detailed introduction to php API interface. For more information, please follow other related articles on the PHP Chinese website!

In PHP, you can use session_status() or session_id() to check whether the session has started. 1) Use the session_status() function. If PHP_SESSION_ACTIVE is returned, the session has been started. 2) Use the session_id() function, if a non-empty string is returned, the session has been started. Both methods can effectively check the session state, and choosing which method to use depends on the PHP version and personal preferences.

Sessionsarevitalinwebapplications,especiallyfore-commerceplatforms.Theymaintainuserdataacrossrequests,crucialforshoppingcarts,authentication,andpersonalization.InFlask,sessionscanbeimplementedusingsimplecodetomanageuserloginsanddatapersistence.

Managing concurrent session access in PHP can be done by the following methods: 1. Use the database to store session data, 2. Use Redis or Memcached, 3. Implement a session locking strategy. These methods help ensure data consistency and improve concurrency performance.

PHPsessionshaveseverallimitations:1)Storageconstraintscanleadtoperformanceissues;2)Securityvulnerabilitieslikesessionfixationattacksexist;3)Scalabilityischallengingduetoserver-specificstorage;4)Sessionexpirationmanagementcanbeproblematic;5)Datapersis

Load balancing affects session management, but can be resolved with session replication, session stickiness, and centralized session storage. 1. Session Replication Copy session data between servers. 2. Session stickiness directs user requests to the same server. 3. Centralized session storage uses independent servers such as Redis to store session data to ensure data sharing.

Sessionlockingisatechniqueusedtoensureauser'ssessionremainsexclusivetooneuseratatime.Itiscrucialforpreventingdatacorruptionandsecuritybreachesinmulti-userapplications.Sessionlockingisimplementedusingserver-sidelockingmechanisms,suchasReentrantLockinJ

Alternatives to PHP sessions include Cookies, Token-based Authentication, Database-based Sessions, and Redis/Memcached. 1.Cookies manage sessions by storing data on the client, which is simple but low in security. 2.Token-based Authentication uses tokens to verify users, which is highly secure but requires additional logic. 3.Database-basedSessions stores data in the database, which has good scalability but may affect performance. 4. Redis/Memcached uses distributed cache to improve performance and scalability, but requires additional matching

Sessionhijacking refers to an attacker impersonating a user by obtaining the user's sessionID. Prevention methods include: 1) encrypting communication using HTTPS; 2) verifying the source of the sessionID; 3) using a secure sessionID generation algorithm; 4) regularly updating the sessionID.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

Atom editor mac version download
The most popular open source editor

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

Zend Studio 13.0.1
Powerful PHP integrated development environment

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function
