php实现以只读方式打开文件的方法_php技巧
May 16, 2016 pm 08:20 PM
php
open a file
method
本文实例讲述了php实现以只读方式打开文件的方法。分享给大家供大家参考。具体分析如下:
php中可以通过fopen()打开一个文件,第二个参数设置为"r"表示已只读方式打开,函数返回一个文件句柄,其它函数就可以通过这个文件句柄对文件进行不同方式的读取
<?php $file = fopen("/tmp/file.txt", "r"); print("Type of file handle: " . gettype($file) . "\n"); print("The first line from the file handle: " . fgets($file)); fclose($file); ?>
Copy after login
上面的代码返回如下结果
Type of file handle: resource
The first line from the file handle: Welcome to sharejs.com php tutorials
文件读取完成后,需要使用fclose()函数关闭文件句柄,以释放资源
希望本文所述对大家的php程序设计有所帮助。
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 Article
How Long Does It Take To Beat Split Fiction?
3 weeks ago
By DDD
Repo: How To Revive Teammates
3 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
R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
1 weeks ago
By 尊渡假赌尊渡假赌尊渡假赌

Hot tools Tags

Hot Article
How Long Does It Take To Beat Split Fiction?
3 weeks ago
By DDD
Repo: How To Revive Teammates
3 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
R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
1 weeks ago
By 尊渡假赌尊渡假赌尊渡假赌

Hot Article Tags

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

PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian

How To Set Up Visual Studio Code (VS Code) for PHP Development
