# dio_read

(PHP 4 >= 4.2.0, PHP 5 <= 5.0.5)

dio_read — Reads bytes from a file descriptor

### Description

string dio_read ( resource `$fd` [, int `$len` ] )

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

### Parameters

`fd`

  The file descriptor returned by dio_open().

`len`

  The number of bytes to read. If not specified, dio_read() reads 1K sized block.

### Return Values

The bytes read from `fd` .

### See Also

- dio_write()