Cakephp：缺少国际扩展名

Question

我正在尝试在我的 Mac 中安装 CakePHP 3.8（macos high sierra 版本 10.13.6），但我从昨天开始就遇到了这个问题，告诉我你的系统中缺少扩展 intl

 User-iMac:TEST zakaria$ composer create-project --prefer-dist 
 cakephp/app my_app_name
 Installing cakephp/app (3.8.0)
 - Installing cakephp/app (3.8.0): Loading from cache
 Created project in my_app_name
 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
 - cakephp/cakephp 3.8.1 requires ext-intl * -> the requested PHP 
 extension intl is missing from your system.
 - cakephp/cakephp 3.8.0 requires ext-intl * -> the requested PHP 
 extension intl is missing from your system.
 - Installation request for cakephp/cakephp 3.8.* -> satisfiable 
by 
cakephp/cakephp[3.8.0, 3.8.1].

To enable extensions, verify that they are enabled in your .ini 
files:
 - /etc/php.ini
You can also run `php --ini` inside terminal to see which files 
are 
used by PHP in CLI mode.
User-iMac:TEST User$ 

• 我试图在 php.ini 中取消注释 extension=php_intl.dll
• 我尝试添加 extension=intl.so

还有很多解决方案，但似乎没有任何效果

Answer 1

不幸的是，在 Mac OS high sierra 上本地安装 PHP 7.1.24 时缺少 Intl 扩展。

从 php.net 下载 PHP 7.1，安装 XCode 命令行工具、ICU (http://site.icu-project.org/)、Autoconf，重新安装开发者工具头文件，最后使用 phpize 安装 Intl 扩展。

重要提示：您必须禁用 SIP。