stream_get_filters

(PHP 5, PHP 7, PHP 8)

stream_get_filters — Retrieve list of registered filters

Description

stream_get_filters(): array

Retrieve the list of registered filters on the running system.

Parameters

This function has no parameters.

Return Values

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

Examples

Example #1 Using stream_get_filters()

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

The above example will output something similar to:

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

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User Contributed Notes 1 note

down

Jasper Bekkers ¶

18 years ago

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);
?>