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。

参数

此函数没有参数。

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。

示例

示例 #1 使用 stream_get_filters()

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

以上示例的输出类似于：

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

改进此页面

了解如何改进此页面 • 提交拉取请求 • 报告一个错误

＋添加备注

用户贡献的备注 1 note

down

Jasper Bekkers ¶

19 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);
?>