深入理解PHP内存管理之谁动了我的内存[转]
首先让我们看一个问题: 如下代码的输出,var_dump(memory_get_usage());$a="laruence";var_dump(memory_get_usage());unset($a);var_dump(memory_get_usage());输出(在我的个人电脑上, 可能会因为系统,PHP版本,载入的扩展不同而不同):int(90440)int(90640)int
首先让我们看一个问题: 如下代码的输出,var_dump(memory_get_usage()); $a="laruence"; var_dump(memory_get_usage()); unset($a); var_dump(memory_get_usage());输出(在我的个人电脑上, 可能会因为系统,PHP版本,载入的扩展不同而不同):int(90440) int(90640) int(90472)注意到 90472-90440=32, 于是就有了各种的结论, 有的人说PHP的unset并不真正释放内存, 有的说, PHP的unset只是在释放大变量(大量字符...
原文地址:深入理解PHP内存管理之谁动了我的内存[转], 感谢原作者分享。

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

In this chapter, we will understand the Environment Variables, General Configuration, Database Configuration and Email Configuration in CakePHP.

PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati

To work with date and time in cakephp4, we are going to make use of the available FrozenTime class.

To work on file upload we are going to use the form helper. Here, is an example for file upload.

In this chapter, we are going to learn the following topics related to routing ?

CakePHP is an open-source framework for PHP. It is intended to make developing, deploying and maintaining applications much easier. CakePHP is based on a MVC-like architecture that is both powerful and easy to grasp. Models, Views, and Controllers gu

Working with database in CakePHP is very easy. We will understand the CRUD (Create, Read, Update, Delete) operations in this chapter.

Validator can be created by adding the following two lines in the controller.
