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                ThinkChat2.0新版上線,更智能更精彩,支持會話、畫圖、視頻、閱讀、搜索等,送10W Token,即刻開啟你的AI之旅 廣告
                * [ ] 獲取header ``` Request::header($Key = null, $Default = null); ``` Key(null|string):名稱 Default (null|string....):默認內容 ***** 獲取整個header數組 ``` Request::header(); ``` ***** 獲取header數組的某一個值 如果請求沒有header參數則返回一個空的數組。注意所有key均為小寫(分隔符號為-) ``` Request::header('host'); ``` ***** 如果header數組中不包含這個值則返回null。注意所有key均為小寫。 與get方法一樣,你也可以給header方法第二個參數傳遞一個默認值,如果header數組中沒找到對應值則返回默認值。例如 ``` Request::header('host','localhost'); ``` ``` 獲取:$_SERVER['HTTP_X_REQUESTED_WITH'] 使用:Request::header('x-requested-with') ```
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