rewind

(PHP 4, PHP 5)

rewind — 倒回文件指针的位置

说明

bool rewind ( resource $handle )

将 handle 的文件位置指针设为文件流的开头。

如果成功则返回 TRUE，失败则返回 FALSE。

文件指针必须合法，并且指向由 fopen() 成功打开的文件。

Note: 如果将文件以附加（"a" 或者 "a+"）模式打开，写入文件的任何数据总是会被附加在后面，不管文件指针的位置。

参见 fseek() 和 ftell()。

rmdir

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Last updated: Mon, 26 Nov 2007

add a note User Contributed Notes
rewind

MagicalTux at kinoko dot fr
27-Nov-2007 02:53


Note that rewind($fd) is exactly the same as fseek($fd, 0, SEEK_SET)



rewind() just moves the location inside the file to the beginning, nothing more. Check if your stream is "seekable" before planning to use fseek/rewind.

berndt at www dot michael - berndt dot de
05-May-2005 03:27


little counter with rewind()

http://www.michael-berndt.de/ie/tux/counter.htm

evan at ozhiker dot no_spam dot com
05-Aug-2004 11:56


As with fseek(), the rewind() function may not be used on file pointers returned by fopen() if they use the "http://" or "ftp://" formats.

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rmdir

rename

Last updated: Mon, 26 Nov 2007