PHP | Gmagick getsamplingfactors() Function

The Gmagick::getsamplingfactors() function is an inbuilt function in PHP which is used to return the horizontal and vertical sampling factor. Sampling factors are used for compression of JPG. If this option is not set using setsamplingfactors() function then the default JPG sampling factors are used.

Syntax:

array Gmagick::getsamplingfactors( void )

Parameters:This function doesn’t accept any parameter.



Return Value: This function returns an associative array containing the values of sampling factors.

Exceptions: This function throws GmagickException on error.

Below given programs illustrate the Gmagick::getsamplingfactors() function in PHP:

Program 1:

filter_none

edit
close

play_arrow

link
brightness_4
code

<?php
  
// Create a new Gmagick object
$gmagick = new Gmagick('geeksforgeeks.png');
   
// Get the image sampling factors
$res = $gmagick->getsamplingfactors();
print("<pre>".print_r($res, true)."</pre>");
?>

chevron_right


Output:

Array  // which is the default empty array
(
)

Program 2:

filter_none

edit
close

play_arrow

link
brightness_4
code

<?php
  
// Create a new Gmagick object
$gmagick = new Gmagick('geeksforgeeks.png');
  
// Set the image sampling factors
$gmagick->setsamplingfactors(array(3, 4, 5));
  
// Get the image sampling factors
$res = $gmagick->getsamplingfactors();
print("<pre>".print_r($res, true)."</pre>");
?>

chevron_right


Output:

Array
(
    [0] => 3
    [1] => 4
    [2] => 5
)

Reference: https://www.php.net/manual/en/gmagick.getsamplingfactors.php

My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.


Article Tags :
Practice Tags :


Be the First to upvote.


Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.