stream_get_filters

(PHP 5)

stream_get_filters -- Retrieve list of registered filters

Description

array stream_get_filters ( void )

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

例子 1. Using stream_get_filters()

<?php
$streamlist
= stream_get_filters();
print_r($streamlist);
?>

Output will be similar to the following. Note: there may be more or fewer filters in your version of PHP.

Array (
  [0] => string.rot13
  [1] => string.toupper
  [2] => string.tolower
  [3] => string.base64
  [4] => string.quoted-printable
)

See also stream_filter_register(), and stream_get_wrappers().


add a note add a note User Contributed Notes
Jasper Bekkers
06-Oct-2005 02:53
Filters to be used within the convert filter are base64-encode,  base64-decode, quoted-printable-encode and quoted-printable-decode. Note: those are not in the string filter, as currently reported by the manual!

Example usage is:
<?php
$h
= fopen('gecodeerd.txt', 'r');
stream_filter_append($h, 'convert.base64-decode');
fpassthru($h);
fclose($h);
?>
Or
<?php
$filter
= 'convert.base64-decode';
$file = 'coded.txt';
$h = fopen('php://filter/read=' . $filter . '/resource=' . $file,'r');
fpassthru($h);
fclose($h);
?>