Backend DevelopmentPHP TutorialHow to call IP list from database and perform matching verification?
Database IP list matching verification method
In program development, it is often necessary to read the IP list from the database and verify it. This article has improved a piece of code to read a comma-separated IP list from the database and convert it into an array for IP matching.
The original code tries to assign the IP list (comma-separated string) read by the database to the array directly, resulting in failure.
Suppose that the IP list in the database is stored as a comma-separated string, for example: "99.88, 110.52, 43.80.235, 11.9.67.180". We need to use the Split function to convert the string into an array.
The improved code is as follows:
This code first obtains the IP list from the database and stores it in dbiplist variable. Split(dbiplist, ",") function converts a comma-separated string into an array and assigns a value to iplist . Loop through each IP in iplist , use the Trim function to remove spaces to ensure exact matches. If the match is successful, output "ok".
This improved code solves the problem of array assignment failure in the original code, effectively implementing the function of reading IP list from the database and performing matching verification. Please make sure that the database connection and client IP address acquisition section are implemented correctly.
The above is the detailed content of How to call IP list from database and perform matching verification?. For more information, please follow other related articles on the PHP Chinese website!
Working with Flash Session Data in LaravelMar 12, 2025 pm 05:08 PMLaravel simplifies handling temporary session data using its intuitive flash methods. This is perfect for displaying brief messages, alerts, or notifications within your application. Data persists only for the subsequent request by default: $request-
cURL in PHP: How to Use the PHP cURL Extension in REST APIsMar 14, 2025 am 11:42 AMThe PHP Client URL (cURL) extension is a powerful tool for developers, enabling seamless interaction with remote servers and REST APIs. By leveraging libcurl, a well-respected multi-protocol file transfer library, PHP cURL facilitates efficient execution of various network protocols, including HTTP, HTTPS, and FTP. This extension offers granular control over HTTP requests, supports multiple concurrent operations, and provides built-in security features.
Simplified HTTP Response Mocking in Laravel TestsMar 12, 2025 pm 05:09 PMLaravel provides concise HTTP response simulation syntax, simplifying HTTP interaction testing. This approach significantly reduces code redundancy while making your test simulation more intuitive. The basic implementation provides a variety of response type shortcuts: use Illuminate\Support\Facades\Http; Http::fake([ 'google.com' => 'Hello World', 'github.com' => ['foo' => 'bar'], 'forge.laravel.com' =>
PHP Logging: Best Practices for PHP Log AnalysisMar 10, 2025 pm 02:32 PMPHP logging is essential for monitoring and debugging web applications, as well as capturing critical events, errors, and runtime behavior. It provides valuable insights into system performance, helps identify issues, and supports faster troubleshoot
12 Best PHP Chat Scripts on CodeCanyonMar 13, 2025 pm 12:08 PMDo you want to provide real-time, instant solutions to your customers' most pressing problems? Live chat lets you have real-time conversations with customers and resolve their problems instantly. It allows you to provide faster service to your custom
Explain the concept of late static binding in PHP.Mar 21, 2025 pm 01:33 PMArticle discusses late static binding (LSB) in PHP, introduced in PHP 5.3, allowing runtime resolution of static method calls for more flexible inheritance.Main issue: LSB vs. traditional polymorphism; LSB's practical applications and potential perfo
Customizing/Extending Frameworks: How to add custom functionality.Mar 28, 2025 pm 05:12 PMThe article discusses adding custom functionality to frameworks, focusing on understanding architecture, identifying extension points, and best practices for integration and debugging.
Alipay PHP SDK transfer error: How to solve the problem of 'Cannot declare class SignData'?Apr 01, 2025 am 07:21 AMAlipay PHP...
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
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Atom editor mac version download
The most popular open source editor
Dreamweaver Mac version
Visual web development tools
Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.
DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software
mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
