stream_get_filters

(PHP 5, PHP 7, PHP 8)

stream_get_filters — 获取已注册的数据流过滤器列表

说明

stream_get_filters ( ) : array

获取当前运行系统中已注册的数据流过滤器列表。

返回值

返回一个包含所有有效的数据流过滤器名字的索引数组。

范例

Example #1 使用 stream_get_filters()


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

以上例程的输出类似于：

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

参见

stream_filter_register() - Register a user defined stream filter
stream_get_wrappers() - 获取已注册的流类型

User Contributed Notes

Jasper Bekkers 05-Oct-2005 11:53


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);

?>