php中引用是什么
php引用是用不同的名字访问同一个变量内容，也就是在变量或者函数、对象等前面加上“&”符号即表示php的引用，引用可以被看作是Unix文件系统中的hardlink。
php引用是什么？
在 PHP 中引用意味着用不同的名字访问同一个变量内容。这并不像 C 的指针，替代的是，引用是符号表别名。注意在 PHP 中，变量名和变量内容是不一样的，因此同样的内容可以有不同的名字。最接近的比喻是 Unix 的文件名和文件本身——变量名是目录条目，而变量内容则是文件本身。引用可以被看作是 Unix 文件系统中的 hardlink。
php的引用（就是在变量或者函数、对象等前面加上&符号）
在PHP 中引用的意思是：不同的名字访问同一个变量内容。
与Ｃ语言中的指针是有差别的．Ｃ语言中的指针里面存储的是变量的内容，在内存中存放的地址。
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
CakePHP Project Configuration
Sep 10, 2024 pm 05:25 PM
In this chapter, we will understand the Environment Variables, General Configuration, Database Configuration and Email Configuration in CakePHP.
PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian
Dec 24, 2024 pm 04:42 PM
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
CakePHP Date and Time
Sep 10, 2024 pm 05:27 PM
To work with date and time in cakephp4, we are going to make use of the available FrozenTime class.
CakePHP File upload
Sep 10, 2024 pm 05:27 PM
To work on file upload we are going to use the form helper. Here, is an example for file upload.
CakePHP Routing
Sep 10, 2024 pm 05:25 PM
In this chapter, we are going to learn the following topics related to routing ?
Discuss CakePHP
Sep 10, 2024 pm 05:28 PM
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
CakePHP Creating Validators
Sep 10, 2024 pm 05:26 PM
Validator can be created by adding the following two lines in the controller.
CakePHP Working with Database
Sep 10, 2024 pm 05:25 PM
Working with database in CakePHP is very easy. We will understand the CRUD (Create, Read, Update, Delete) operations in this chapter.
