(PHP 4 >= 4.3.2, PHP 5, PHP 7) Open directory handle

(PHP 4 >= 4.3.2, PHP 5, PHP 7) Rewind directory handle

(PHP 4 >= 4.3.2, PHP 5, PHP 7) Retrieve the current position of a stream

(PHP 4 >= 4.3.2, PHP 5, PHP 7) Retrieve information about a file

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Attach a filter to a stream

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Retrieve options for a stream/wrapper/context

(PHP 4 >= 4.3.2, PHP 5, PHP 7) Write to stream

(PHP 5, PHP 7) Called when applying the filter

(PHP 5, PHP 7) Create an Internet or Unix domain server socket

(PHP 5, PHP 7) Retrieve list of registered streams