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What debugging techniques can be used in PHP to troubleshoot issues with Ajax requests and dropdown selection synchronization?

Issue: When troubleshooting issues with Ajax requests and dropdown selection synchronization in PHP, one common technique is to use the `console.log()...

What are the differences between print_r, printf, sprintf, vprintf, and vsprintf functions in PHP?

The main differences between print_r, printf, sprintf, vprintf, and vsprintf functions in PHP are: 1. print_r: Used to display human-readable informa...