(PHP 4, PHP 5)
readfile — Outputs a file
Reads a file and writes it to the output buffer.
The filename being read.
You can use the optional second parameter and set it to TRUE, if you want to search for the file in the include_path, too.
A context stream resource.
Returns the number of bytes read from the file. If an error occurs, FALSE is returned and unless the function was called as @readfile(), an error message is printed.
如果「fopen wrappers」已經被啟用,則在本函式中可以把 URL 作為檔案名來使用。請參閱 fopen() 函式來獲取如何指定文件名的詳情以及支援 URL 協定列表:List of Supported Protocols/Wrappers。
Note: 對 context 的支援是 PHP 5.0.0 增加的。有關 context 的說明見Streams。