The Ultimate
Snippet Library.

Access Child Methods in Vue 3 with `ref` and `defineExpose`

Learn how to call methods of a child component directly from its parent in Vue 3 by using template refs and explicitly exposing methods with `defineExpose`.

Secure Input Handling: Escape HTML & Sanitize for Database

Learn to prevent XSS and SQL injection by properly escaping HTML output and sanitizing user inputs using prepared statements in PHP, enhancing web application security.

Implement Secure Password Hashing and Verification

Discover how to securely hash and verify user passwords in PHP using the `password_hash()` and `password_verify()` functions, a critical step for robust user authentication.

Strengthen PHP Session Security Practices

Enhance PHP session security by implementing session regeneration, secure cookie flags, and proper session destruction to prevent session fixation and hijacking attacks.

Add Basic API Rate Limiting to Express.js

Implement a basic rate limiting middleware for Express.js applications to protect against brute-force attacks and API abuse by restricting the number of requests per client.

Configure Secure CORS for Express.js APIs

Learn to securely configure Cross-Origin Resource Sharing (CORS) in your Express.js API, controlling which domains can access your resources and preventing unauthorized cross-origin requests.

Automatically Clean Up Old Log and Temp Files

Learn to create a Bash script that automatically identifies and deletes old log files or temporary files from a specified directory, preventing disk space issues.

Extract Unique IP Addresses from Web Server Access Logs

Create a Bash script to efficiently parse web server access logs (Apache/Nginx) and extract all unique IP addresses, useful for security analysis or traffic monitoring.

Check if a Port is in Use or a Service is Running

Write a Bash script to verify if a specific TCP port is actively being used by a process or if a given service process is currently running on the system.

Batch Rename Multiple Files with a Specific Pattern

Learn to use a Bash script to efficiently rename multiple files in a directory by applying a common prefix, suffix, or replacing parts of their names.

Find Common Values Across Multiple PHP Arrays

Efficiently identify and extract all values that are present in every one of several PHP arrays using the `array_intersect` function, useful for data validation or finding common elements.

Re-index PHP Array After Element Removal

Understand how to reset and re-sequence numeric keys in a PHP array after elements have been removed using `unset`, ensuring sequential indexing starting from zero.