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Snippet Library.

Filter Array of Associative Arrays by Key Value

Learn how to efficiently filter an array of associative arrays in PHP, retaining only elements where a specific key matches a desired value.

Transform Array Values with `array_map`

Discover how to apply a callback function to each element of an array in PHP using `array_map()`, creating a new array with transformed values.

Aggregate Array Values with `array_reduce`

Learn to condense an array to a single value in PHP using `array_reduce()`. Perfect for calculating sums, averages, or concatenating strings.

Custom Sort Array of Associative Arrays

Master custom sorting of complex PHP arrays. Learn to sort an array of associative arrays based on specific key values using `usort()` for precise ordering.

Implement a Robust Content Security Policy (CSP)

Protect your web application from Cross-Site Scripting (XSS) and data injection attacks by defining trusted sources for content using a Content Security Policy.

Securely Hash and Verify Passwords with `password_hash()`

Implement robust password security for user authentication by hashing passwords using PHP's `password_hash()` with `PASSWORD_BCRYPT` and verifying them securely.

Implement CSRF Protection Using Synchronizer Tokens

Safeguard your web forms from Cross-Site Request Forgery (CSRF) attacks by generating unique, session-based tokens and validating them upon form submission.

Configure Essential Security HTTP Headers

Enhance the overall security posture of your web application by explicitly setting crucial HTTP response headers like X-Frame-Options, X-Content-Type-Options, and HSTS.

Perfect Centering with Flexbox for Any Element

Learn to perfectly center any block or inline-block element horizontally and vertically within its parent using a simple CSS Flexbox pattern.

Create a Responsive Card Grid with `grid-auto-fit`

Implement a highly responsive grid layout that automatically adjusts the number of columns based on available space using CSS Grid's `auto-fit` and `minmax` functions.

Implement a Sticky Footer Layout Using Flexbox

Create a classic sticky footer layout that always stays at the bottom of the viewport, even with sparse content, using a simple Flexbox structure for robust web design.

Achieve Equal Height Columns with CSS Flexbox

Easily create columns that always maintain the same height, regardless of their content, by leveraging the default stretching behaviors of CSS Flexbox for consistent layouts.