PHP stream_filter_append() Function

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PHP STREAM_COPY_TO STREAM() FUNCTION
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what is the syntax of the stream_filter_append() function in php?

stream_filter_append(stream, filter, rw, params)
ParameterDescription
streamRequired. Specifies the target stream
filterRequired. Specifies the filter name
rwOptional.
paramsOptional.
PHP stream_filter_append() method

examples of the STREAM_FILTER_APPEND() function

Example 1. In this example, we append a filter to a stream.

<?php
$f = fopen("test1.txt", "w");

// Add "zlib.deflate" filter
stream_filter_append($f, "zlib.deflate");

fclose($f);
?>
PHP STREAM_COPY_TO STREAM() FUNCTION
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