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| Channel | Topic | PHP 7 Focus? | | :--- | :--- | :--- | | Code with Dary | Linked lists, stacks, queues in PHP | ✅ Yes | | Program With Gio | Big O notation & sorting algorithms in PHP | ✅ Yes | | The Net Ninja (archived) | OOP PHP with practical data structures | ⚠️ PHP 5.x (still useful) | If a PDF feels too dry, try these
"PHP 7 Data Structures and Algorithms" by Mizanur Rahman (Packt Publishing) "PHP 7 Data Structures and Algorithms" by Mizanur
Since PHP arrays are already hash tables, a practical PDF explains how PHP 7’s string interning and hash function work under the hood, helping you write collision-resilient code. helping you write collision-resilient code.