How to solve the problem that php7 cannot load curl
本篇文章给大家介绍一下解决php7无法加载curl的方法。有一定的参考价值，有需要的朋友可以参考一下，希望对大家有所帮助。
为了快速救火先贴出解决办法：
#在apache 的主配置文件httpd.conf中加入 LoadFile "E:\myServer\php\libssh2.dll"
最近对PHP环境搭建配置做了一些创新的尝试，目的就是要最大限度让系统各部分更加干净，独立的apache、php、mysql，除此之外不需要更多。
在PHP配置文件中是可以使用相对路径的，可互联网上你能看到的教程全部是写绝对路径，例如D:\path\php\ext，现在不用了
#第732行 php.ini 7.2.3 extension_dir = "..\php\ext"
在apache中的配置是可以动态引入的
Include conf/user.conf Include conf/codenight/*.conf
甚至可以使用变量
Define ROOT "E:\myServer"
Define SRV_ROOT "${ROOT}/Apache24"以上可以解决非常多的配置问题，关于PHP环境搭建配置优化，在今天的和以前的推送中有详细说明，这里不展开。
配置优化后，PHP所有的模块都能如期加载，完美。
不不不，php_curl不行，这是apache告诉我们的
#在..\Apache24\logs中我们发现仅有的一条警告 PHP Warning: PHP Startup: Unable to load dynamic library 'curl' (tried: ..\\php\\ext\\curl (\xef\xbf\xbd\xd2\xb2\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xd6\xb8\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xc4\xa3\xef\xbf\xbd\xe9\xa1\xa3), ..\\php\\ext\\php_curl.dll (\xef\xbf\xbd\xd2\xb2\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xd6\xb8\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xc4\xa3\xef\xbf\xbd\xe9\xa1\xa3)) in Unknown on line 0
那PHP的curl模块是用不了了，我们测试了
Fatal error: Uncaught Error: Call to undefined function curl_init()
emmmmm？
出了这个模块无法加载的问题，开始我怀疑是不是../php/ext的相对路径不能这样写，但其他模块mysqli，mbstring都没有问题，排除
百度搜索一波
Q: PHP Startup: Unable to load dynamic library 'curl'
不是想要的答案，换一种方式
Q: php7不能使用curl
A1：简单粗暴往httpd.conf塞四条语句
LoadFile D:/php/php7.1/php7ts.dll LoadFile D:/php/php7.1/libeay32.dll LoadFile D:/php/php7.1/ssleay32.dll LoadFile D:/php/php7.1/libssh2.dll
A2：其实只用加载一个即可
最终的解决方式是在php官网上搜索curl,然后看下面的英文评论. Move to Windows\system32 folder: libssh2.dll, php_curl.dll, ssleay32.dll, libeay32.dll Move to Apache24\bin folder libssh2.dll 我自己只是把libssh2.dll 这个文件放到Apache24\bin终于中解决。
以上这两种方法都能生效，但第一种胡乱加载无关模块太多，其实后患无穷；第二种就要好得多，有思考和尝试。第二种方法提到的是把PHP目录下的一个文件libssh2.dll放到apache目录下，但移动文件也不符合最小改动原则，这个还可以改进一下。
我们采用第三种动态加载的办法，通过在加载curl之前引入libssh2.dll即可，同时根据我们配置优化的结构，只用放到独立的php7.conf文件中，也不必修改httpd.conf
第一行是我们加入的，这样的好处是PHP的配置在单独的文件，不干扰apache主配置文件
#..\myServer\Apache24\conf\codenight\php7.conf
#以支持curl
LoadFile "${PHP_ROOT}/libssh2.dll"
LoadModule php7_module "${PHP_ROOT}/php7apache2_4.dll"
AddHandler application/x-httpd-php .php
# 配置 php.ini所在路径
PHPIniDir "${PHP_ROOT}"推荐学习：php视频教程
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