Streams
PHP Manual

stream_get_wrappers

(PHP 5)

stream_get_wrappers — Retrieve list of registered streams

Description

array stream_get_wrappers ( void )

Returns an indexed array containing the name of all stream wrappers available on the running system.

Example#1 stream_get_wrappers() example

<?php
print_r
(stream_get_wrappers());
?>

The above example will output something similar to:

Array ( [0] => php [1] => file [2] => http [3] => ftp [4] => compress.bzip2 [5] => compress.zlib )

Example#2 Checking for the existence of a stream wrapper

<?php
// check for the existence of the bzip2 stream wrapper
if (in_array('compress.bzip2'stream_get_wrappers())) {
    echo 
'compress.bzip2:// support enabled.';
} else {
    echo 
'compress.bzip2:// support not enabled.';
}
?>

See also stream_wrapper_register().


Streams
PHP Manual