Understanding PHP7 HashTable Implementation

HashTable in PHP7 PHP's array type is built on top of HashTable—a data structure that powers not only user-space arrays but also internal mechanisms like function tables, class registries, constants, and the global symbol table. HashTable provides O(1) average lookup time by computing a direct mapping from keys to memory locations through a has ...

Posted on Mon, 07 Sep 2026 16:25:44 +0000 by kristian_gl