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![Next.js Hydration Error: Hydration failed because the initial UI does not match what was rendered on the server [Fixed]](/images/blogPostCovers/nextjs-hydration-error.png)
Hydration errors arise from mismatched server-client rendering, often caused by incorrect tags, changing data or third-party library inconsistencies. 
PHP has a way you can display currencies without manually attaching currency symbols to numbers 
You can display currencies without manually attaching currency symbols to numbers in JavaScript 
Everything you need to know to start using the JavaScript intersection observer API in your projects. 
Master looping through arrays in PHP using both for and foreach loops to simplify data handling. 
Learn file-based and nested routing in Next.js. Create folders, manage pages, and enhance navigation with layouts and active link highlights.