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 $file_contents;
是获取不到值的,但我们可以利用function_exists来判断此函数是否可用,代码如下:
<?php function file_get_content($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; }
本文地址:
转载随意,但请附上文章地址:-)

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

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

Hot Article

Hot Tools

SublimeText3 English version
Recommended: Win version, supports code prompts!

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.

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

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

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool
