PHP | stream_get_filters() Function

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The stream_get_filters() function is an inbuilt function in PHP which is used to get the list of registered stream filters.

Syntax:

array stream_get_filters( void )

Parameters: This function does not accept any parameter.

Return Value: This function returns an array containing the name of all available stream filters.

Below programs illustrate the stream_get_filters() function in PHP:

Program 1:

<?php 
  
// PHP program to illustrate 
// stream_get_filter function 
  
$streamlist = stream_get_filters(); 
print_r($streamlist); 
?> 

Output:

Array
(
    [0] => zlib.*
    [1] => string.rot13
    [2] => string.toupper
    [3] => string.tolower
    [4] => string.strip_tags
    [5] => convert.*
    [6] => consumed
    [7] => dechunk
    [8] => convert.iconv.*
)

Program 2: Program to print number of filters return by function.

<?php 
  
// PHP program to illustrate 
// stream_get_filter function 
  
$res = stream_get_filters(); 
  
$count = sizeof($res); 
  
// Print result 
echo "Total Available Filters = " . $count; 
?> 

Output:

Total Available Filters = 9

Reference: http://php.net/manual/en/function.stream-get-filters.php

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