php file_get_contents返回空 无效解决办法
file_get_contents函数多用来于来采集远程服务器上的内容,但使用file_get_contents函数之前我们在php.ini中是必须把allow_url_fopen开启才行
问题描述:
fopen(),file_get_contents(),getimagesize() 等都不能正常获得网络上的内容,具体表现为凡参数是URL的,一律返回空值.
如果是windows可找开 allow_url_fopen开启,如果是否linux中可以重新编译PHP,去掉-with-curlwrapper 参数——编译前记得先执行 make clean.
windows 在未开启allow_url_fopen时我们利用如下代码:
<?php $file_contents = file_get_contents("http://www.phprm.com/"); echo $file_contents;
Copy after login
是获取不到值的,但我们可以利用function_exists来判断此函数是否可用,代码如下:
<?php function file_get_content($url) { if (function_exists('file_get_contents')) { $file_contents = @file_get_contents($url); } if ($file_contents == '') { $ch = curl_init(); $timeout = 30; curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout); $file_contents = curl_exec($ch); curl_close($ch); } return $file_contents; }
Copy after login
本文地址:
转载随意,但请附上文章地址:-)
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
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
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
Hello Kitty Island Adventure: How To Get Giant Seeds
1 months ago
By 尊渡假赌尊渡假赌尊渡假赌
How Long Does It Take To Beat Split Fiction?
4 weeks ago
By DDD
R.E.P.O. Save File Location: Where Is It & How to Protect It?
4 weeks ago
By DDD
Two Point Museum: All Exhibits And Where To Find Them
1 months ago
By 尊渡假赌尊渡假赌尊渡假赌

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)
