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来源： composer安装tp6引入各种包问题解决笔记！ – 简书
执行composer require topthink/framework，报错，原因proc_open函数被禁用
[Symfony\Component\Process\Exception\RuntimeException]
The Process class relies on proc_open, which is not available on your PHP installation.
解决方法：
打开php.ini，搜索disable_functions，找到proc_open并删除即可。
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执行composer require topthink/think-image报错原因：
pcntl_signal函数被禁用，同上删除该禁用，重启PHP
[ErrorException]
pcntl_signal() has been disabled for security reasons
执行composer require topthink/think-worker 报错：
解决方法：安装fileinfo扩展
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.
Problem 1
- topthink/think-worker v3.0.4 requires ext-fileinfo * -> the requested PHP extension fileinfo is missing from your system.
- topthink/think-worker v3.0.3 requires ext-fileinfo * -> the requested PHP extension fileinfo is missing from your system.
- topthink/think-worker v3.0.2 requires ext-fileinfo * -> the requested PHP extension fileinfo is missing from your system.
- topthink/think-worker v3.0.1 requires ext-fileinfo * -> the requested PHP extension fileinfo is missing from your system.
- topthink/think-worker v3.0.0 requires ext-fileinfo * -> the requested PHP extension fileinfo is missing from your system.
- Installation request for topthink/think-worker ^3.0 -> satisfiable by topthink/think-worker[v3.0.0, v3.0.1, v3.0.2, v3.0.3, v3.0.4].
To enable extensions, verify that they are enabled in your .ini files:
- /www/server/php/73/etc/php.ini
You can also run `php --ini` inside terminal to see which files are used by PHP in CLI mode.
Installation failed, reverting ./composer.json to its original content.
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作者：DragonersLi
链接：https://www.jianshu.com/p/17fa22374667
来源：简书
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