php chmod 函数 改变文件模式
在我们操作文件时经常会经用chmod函数来改变指定目录的操作权限哦,
在我们操作文件时经常会经用chmod函数来改变指定目录的操作权限哦,
属性
( PHP 4中, PHP 5中)
搭配chmod -改变文件模式
描述
布尔属性(字符串$文件名,国际$模式)
企图改变模式指定的文件,以所提供的模式。
参数
文件名
文件路径。
模式
请注意,模式是不会自动假定为八进制值,所以字符串(如“克+瓦特” )将无法正常工作。为了确保预期的操作,你需要前缀模式下零( 0 ) :
chmod("/somedir/somefile", 755); // decimal; probably incorrect
chmod("/somedir/somefile", "u+rwx,go+rx"); // string; incorrect
chmod("/somedir/somefile", 0755); // octal; correct value of mode
?>
该模式参数包含三个八进制数组成部分指定准入限制的所有者,用户组中的主人是在和其他人一样在这一秩序。一个组成部分可以计算,增加了必要的权限,这个目标用户群。编号1意味着您授予执行权, 2号意味着你的档案写入, 4号意味着你的档案可读性。购买了这些数字来指定需要的权利。您也可以阅读更多关于模式与Unix系统'男子1属性'和'人2属性。
// Read and write for owner, nothing for everybody else
chmod("/somedir/somefile", 0600);
// Read and write for owner, read for everybody else
chmod("/somedir/somefile", 0644);
// Everything for owner, read and execute for others
chmod("/somedir/somefile", 0755);
// Everything for owner, read and execute for owner's group
chmod("/somedir/somefile", 0750);
?>
编辑推荐函数:

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

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

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

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

SublimeText3 Linux new version
SublimeText3 Linux latest version

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),