运行yii2 归档包访问入口报错 Parse error: syntax error, unexpected ‘:‘, expecting ‘{‘ in E:\wamp64\www\yii\vend

php版本为 5.6.25

Parse error: syntax error, unexpected ':', expecting '{' in E:\wamp64\www\yii\vendor\symfony\polyfill-php80\bootstrap.php on line 23

$运行yii2 归档包访问入口报错 Parse error: syntax error, unexpected ‘:‘, expecting ‘{‘ in E:\wamp64\www\yii\vend$

切换7.0版本报错好了

$运行yii2 归档包访问入口报错 Parse error: syntax error, unexpected ‘:‘, expecting ‘{‘ in E:\wamp64\www\yii\vend$