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dio_read

(PHP 4 >= 4.2.0, PHP 5 < 5.1.0)

dio_read从文件描述符读取字节

说明

dio_read(resource $fd, int $len = 1024): string

dio_read() 函数读取并返回描述符 fd 指定文件中的 len 字节。

参数

fd

dio_open() 返回的文件描述符。

len

要读取的字节数。如果未指定,dio_read() 读取 1K 大小的块。

返回值

fd 读取的字节。

参见

  • dio_write() - 截取可选长度的数据写入文件

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matt at vhub dot com
19 years ago
Note that dio_read on Windows (other platforms unknown) will not timeout if there is no data to read. There is no way to specify a timeout or do a non-blocking read on Windows.
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