安装yii2框架时出错
Notice: Use of undefined constant INTL_ICU_VERSION - assumed
'INTL_ICU_VERSION' in F:\Program
Files\my_web_sever\wamp\Apache24\htdocs\basic\vendor\yiisoft\yii2\requirements\requirements.php on line 67
Notice: Use of undefined constant
INTL_ICU_VERSION - assumed 'INTL_ICU_VERSION' in F:\Program
Files\my_web_sever\wamp\Apache24\htdocs\basic\vendor\yiisoft\yii2\requirements\requirements.php on line 73