stream_get_filters()
(PHP 5, PHP 7)
获取已注册的数据流过滤器列表
说明
stream_get_filters(void): 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
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 filterstream_get_wrappers()
获取已注册的流类型
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); ?>