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Dieses Dokument verwendet PHP-Handbuch für chinesische Websites Freigeben
A filter is a final piece of code which may perform operations on data as it is being read from or written to a stream. Any number of filters may be stacked onto a stream. Custom filters can be defined in a PHP script using stream_filter_register() or in an extension using the API Reference in 流的使用. To access the list of currently registered filters, use stream_get_filters() .