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Bejson.com
PHP Manual
Direct IO 函數
Reads bytes from a file descriptor

dio_read

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

dio_read — Reads bytes from a file descriptor

說(shuō)明

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

The function dio_read() reads and returns len bytes from file with descriptor fd.

參數

fd: The file descriptor returned by dio_open().
len: The number of bytes to read. If not specified, dio_read() reads 1K sized block.

返回值

The bytes read from fd.

參見(jiàn)

dio_write() - Writes data to fd with optional truncation at length

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