Course 8083
Course Introduction:The processing and analysis of strings is an important foundation in any programming language. The classification, parsing, storage and display of information, as well as data transmission in the network, all require the manipulation of strings. It is particularly important in web development. Most of the work of programmers is to operate strings, so string processing also reflects a programming ability of programmers.
Course 24479
Course Introduction:Object-oriented programming using php
Course 2857
Course Introduction:Course introduction: 1. Cross-domain processing, token management, route interception; 2. Real interface debugging, API layer encapsulation; 3. Secondary encapsulation of Echarts and paging components; 4. Vue packaging optimization and answers to common problems.
Course 1795
Course Introduction:Apipost is an API R&D collaboration platform that integrates API design, API debugging, API documentation, and automated testing. It supports grpc, http, websocket, socketio, and socketjs type interface debugging, and supports privatized deployment. Before formally learning ApiPost, you must understand some related concepts, development models, and professional terminology. Apipost official website: https://www.apipost.cn
Course 5521
Course Introduction:(Consult WeChat: phpcn01) The comprehensive practical course aims to consolidate the learning results of the first two stages, achieve flexible application of front-end and PHP core knowledge points, complete your own projects through practical training, and provide guidance on online implementation. Comprehensive practical key practical courses include: social e-commerce system backend development, product management, payment/order management, customer management, distribution/coupon system design, the entire WeChat/Alipay payment process, Alibaba Cloud/Pagoda operation and maintenance, and project online operation. .....
2023-11-16 14:36:03 0 12 290
2023-11-14 12:58:58 0 1 292
How to use open primitive tag in next js 13?
2023-11-10 23:03:51 0 1 527
Master the use of Quasar variables in scss style
2023-11-04 21:05:29 0 1 304
2023-10-31 20:01:48 0 2 222
Course Introduction:How to use PDO preprocessing to prevent SQL injection attacks Introduction: During web development, we often need to interact with the database. However, incorrect database query operations may lead to serious security risks, and one of the most widely exploited attack methods is SQL injection attacks. In order to prevent SQL injection attacks, PDO provides a preprocessing mechanism. This article will introduce how to use PDO preprocessing correctly. What is a SQL injection attack: SQL injection is an attack technique against the database. The attacker uses
2023-07-28 comment 0 984
Course Introduction:In web development, connecting to the database is a crucial step. With the development of PHP, the PDO extension has become the preferred way to connect to databases because it is compatible with multiple databases and provides better error handling and security. This article will provide an in-depth understanding of the safety and execution efficiency of PDO prepared statements to help developers better use PDO to connect to the database. Overview of PDO prepared statements When using PDO to connect to a database, there are two commonly used SQL statements: ordinary statements and prepared statements. Ordinary statements directly change
2023-05-11 comment 0 802
Course Introduction:PDO (PHPDataObject) is a powerful tool for handling database interaction in PHP. To ensure code robustness and handle errors gracefully, exception handling is crucial in PDO. This article will delve into PHPPDO's exception handling mechanism and provide code examples to help you effectively handle database errors and improve code quality. Exception Handling OverviewException handling is a programming technique that allows code to respond in a controlled manner when it encounters errors or unexpected conditions. In PHP, exceptions are represented by the Exception class and its subclasses such as PDOException. Using exception handling, you can catch and handle errors, avoid code interruptions, and provide meaningful error messages. PDO exception handling PDO provides
2024-02-19 comment 368
Course Introduction:In PHP, we can use prepared statements to perform database operations, and prepared statements are generally considered to be a safer, more efficient and more reliable method. Prepared statements are actually a way to process efficiently and prevent SQL injection attacks. When processing prepared statements, the database will first compile the SQL statement, and then bind the parameters to the compiled SQL statement. In PHP, the preprocessing mechanism is supported by the PDO and mysqli modules. The following are the most commonly used preprocessing methods in the two modules: 1. PDO preprocessing method PD
2023-05-06 comment 0 470
Course Introduction:PHP pdo error handling setting method: 1. Set "PDO::ERRMODE_SILENT", and then obtain the error information in the form of "$pdo->errorInfo()"; 2. Set "PDO::ERRMODE_WARNING" and check the "E_WARNING" error; 3. Set "PDO::ERRMODE_EXCEPTION" and then output the error message with "try{}cath(){}".
2022-10-19 comment 0 1114