PHP funkce stream_filter_prepend()
📅 06. 07. 2020Dostupnost ve verzích: PHP 4.3.0
Attach a filter to a stream
Parametry
Parametr | Datový typ | Výchozí hodnota | Poznámka |
---|---|---|---|
$stream | resource | The target stream. | |
$filtername | string | The filter name. | |
$read_write | int | null, | By default, stream_filter_prepend will attach the filter to the read filter chain if the file was opened for reading (i.e. File Mode: r, and/or +). The filter will also be attached to the write filter chain if the file was opened for writing (i.e. File Mode: w, a, and/or +). STREAM_FILTER_READ, STREAM_FILTER_WRITE, and/or STREAM_FILTER_ALL can also be passed to the read_write parameter to override this behavior. See stream_filter_append for an example of using this parameter. |
$params | mixed | null | This filter will be added with the specified params to the beginning of the list and will therefore be called first during stream operations. To add a filter to the end of the list, use stream_filter_append. |
Návratové hodnoty
resource
a resource which can be used to refer to this filter instance during a call to stream_filter_remove.
Další zdroje
Jan Barášek Více o autorovi
Autor článku podniká jako fullstack senior developer v Praze. Spravuje 300 různě velkých webových projektů, fungujících dodnes. Během spolupráce nabral hluboké zkušenosti, které na tomto webu předává dál.
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