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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                header方法獲取當前請求的HTTP請求頭信息: ``` Accept: */* Accept-Language: en-us Accept-Encoding: gzip, deflate User-Agent: Mozilla/4.0 Host: www.example.com Connection: Keep-Alive ``` ``` $info = $this->header(); echo $info['accept']; echo $info['accept-encoding']; echo $info['user-agent']; ``` 也可以直接獲取某個請求頭信息,例如: ``` $agent = $this->header('user-agent'); ``` HTTP請求頭信息的名稱不區分大小寫,并且_會自動轉換為-,所以下面的寫法都是等效的: ``` $agent = $this->header('user-agent'); $agent = $this->header('User-Agent'); $agent = $this->header('User_Agent'); $agent = $this->header('USER_AGENT'); ```
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