PHP Warning: PHP Startup: Unable to load dynamic library 'php_igbinary.dll'

PHP Warning: PHP Startup: Unable to load dynamic library ‘php_igbinary.dll’ (tried: D:\xampp\php\ext\php_igbinary.dll (找不到指定的模块。), 在安装composer时发现的报错 应该就是 php.ini中有添加extension=php_igbinary.dll，但是（安装目录）

>>阅读原文<<