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                # PHP pathinfo() 函數 ## 定義和用法 pathinfo() 函數以數組的形式返回文件路徑的信息。 ### 語法 ``` pathinfo(path,options) ``` | 參數 | 描述 | | --- | --- | | path | 必需。規定要檢查的路徑。 | | process_sections | 可選。規定要返回的數組元素。默認是 all。可能的值: `PATHINFO_DIRNAME` - 只返回 dirname `PATHINFO_BASENAME` - 只返回 basename `PATHINFO_EXTENSION` - 只返回 extension | ### 說明 pathinfo() 返回一個關聯數組包含有 _path_ 的信息。 包括以下的數組元素: * [dirname] * [basename] * [extension] ## 提示和注釋 注釋:如果不是要求取得所有單元,則 pathinfo() 函數返回字符串。 ## 例子 ### 例子 1 ``` <?php print_r(pathinfo("/testweb/test.txt")); ?> ``` 輸出: ``` Array ( [dirname] => /testweb [basename] => test.txt [extension] => txt ) ``` ### 例子 2 ``` <?php print_r(pathinfo("/testweb/test.txt",PATHINFO_BASENAME)); ?> ``` 輸出: ``` test.txt ```
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