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php中文网 Courses
php中文网 Courses
Jun 30, 2021 · Backend Development

Understanding PHP's zend_string Structure and Memory Management

This article explains the internal PHP7+ data structures such as _zval_struct, zend_value, and zend_string, detailing their fields, type definitions, memory layout, flexible array usage, and the associated allocation and release macros that enable efficient, binary‑safe string handling in the Zend Engine.

C languageData StructuresString()
0 likes · 11 min read
Understanding PHP's zend_string Structure and Memory Management
360 Tech Engineering
360 Tech Engineering
Oct 18, 2019 · Backend Development

Understanding PHP unset(): Does It Really Release Memory?

This article examines whether PHP's unset() function truly frees memory by debunking common myths, demonstrating verification methods, analyzing the Zend engine's memory manager, and presenting practical code examples that reveal how different variable types affect memory usage after unsetting.

PHPPerformancebackend
0 likes · 9 min read
Understanding PHP unset(): Does It Really Release Memory?