(PHP 4 >= 4.2.0)dio_read -- Reads n bytes from fd and returns them, if n is not specified, reads 1k block
Descriptionstring dio_read ( resource fd [, int n])
The function dio_read() reads and returns n bytes from file with descriptor fd. If n is not specified, dio_read() reads 1K sized block and returns them.
See also: dio_write().