Home php教程 php手册 PHP性能优化的技巧

PHP性能优化的技巧

Jun 13, 2016 am 10:34 AM
include php require optimization about performance Skill data array test of

  关于require, include的性能
  测试数据:
  有一个数组 , 一共3万条数据, 1MB大小, 我分成2种方法放数据来测试//sexinsex
  1. array.php 直接新建个空php文件, 把数组放进去
  2. array.txt 把数组serialize后保存
  测试程序:
  复制内容到剪贴板 代码:for ($i=0 ;$i    require(dirname(__FILE__)./array.php);
}
  结果:
  页面执行时间: 12.8904 秒
  页面执行时间: 12.8863 秒
  页面执行时间: 12.8942 秒
  页面执行时间: 12.8992 秒
  页面执行时间: 12.9013 秒
  require和include速度一样,结果就不写了
  测试程序:
  复制内容97gan到剪贴板 代码:for ($i=0 ;$i    $all = unserialize(file_get_contents(dirname(__FILE__)./array.txt));
}
  结果:
  页面执行时间: 3.7988 秒
  页面执行时间: 3.8125 秒
  页面执行时间: 3.8118 秒
  页面执行时间: 3.8062 秒
  页面执行时间: 3.8311 秒
  因此,引申出2点结论此教程来源于97xxoo教程网(www.97xxoo.org)
查看完整的教程请点:http://www.97xxoo.org/article/1/2008/20081124428.shtml
  1. 在写一些类或函数的时候, 大数组不要放在程序里, 应该用file_get_contents方法读取
  2. 做缓存的方式, file_get_contents再unserialize要比require和include快, 比如sablog和discuz的缓存方式就有问题, 它们是把数据库里的内容, 程序读出来再存成可以require的数组, 具体程序我没再看了, var_export就可以搞定, 但实现起来, serialize要方便直观容易得多
  3. 关于安全性, php直接require的方式, 虽然可以在头顶上加上 defined()来判断
  但file_get_contents方法安全性可以这样做, 把重要数据都放在一个目录里, 如/data/然后在/data/里放个.htaccess, 写deny from all, 或者在根目录放.htaccess加个文件后缀的规则禁止都可以
  小技巧, just so so.....

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

CakePHP Project Configuration 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 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 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 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 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 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

How To Set Up Visual Studio Code (VS Code) for PHP Development How To Set Up Visual Studio Code (VS Code) for PHP Development Dec 20, 2024 am 11:31 AM

Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c

CakePHP Creating Validators CakePHP Creating Validators Sep 10, 2024 pm 05:26 PM

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

See all articles