dio_read

(PHP 4 >= 4.2.0, PHP 5 <= 5.0.5, PHP 7)

dio_read — Reads bytes from a file descriptor

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

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

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

The bytes read from fd.