dio_read

Reads bytes from a file descriptor (PHP 4 >= 4.2.0, PHP 5 <= 5.0.4)
string dio_read ( resource fd [, int len] )

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

参数

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.