PHP | Gmagick thumbnailimage() Function

The Gmagick::thumbnailImage() function is an inbuilt function in PHP which is used to changes the size of an image to the given dimensions and removes any associated profiles. This function is used to produce small, low-cost thumbnail images suited for display on the Web. If $fit parameter is set to True then row and column parameter used maximum side. Both sides will be scaled until the match or are smaller than the parameter given for the side.

Syntax:

public Gmagick::thumbnailimage( $width, $height, $fit = FALSE ] )

Parameters: This function accepts three parameters as mentioned above and described below:  

• $width: This parameter is used to set the image width.
• $height: This parameter is used to set the image height.
• $fit: This parameter describes whether takes the boolean value.

Return Value: This function returns Gmagick object on success.
Errors/Exceptions: This function throws GmagickException on error.

Below programs illustrates the Gmagick::thumbnailimage() function in PHP:

Program 1:
Input Image:

PHP

<?php

// Create a Gmagick object
$gmagick = new Gmagick(
'https://media.geeksforgeeks.org/wp-content/uploads/tech.png');

// Thumbnail of the image.
$gmagick->thumbnailImage(320, 425, TRUE);

header('Content-type: image/png');

// Output the image
echo $gmagick;
?>

Output:

Program 2:

PHP

<?php

// Create a GmagickDraw object
$draw = new GmagickDraw();

// Create GmagickPixel object
$strokeColor = new GmagickPixel('Red');
$fillColor = new GmagickPixel('Green');

// Set the color, opacity of image
$draw->setStrokeOpacity(1);
$draw->setStrokeColor('Red');
$draw->setFillColor('Green');

// Set the width and height of image
$draw->setStrokeWidth(7);
$draw->setFontSize(72);

// Function to draw circle
$draw->circle(250, 250, 100, 150);

$gmagick = new Gmagick();
$gmagick->newImage(500, 500, 'White');
$gmagick->setImageFormat("png");
$gmagick->drawImage($draw);

// Thumbnail of the image.
$gmagick->thumbnailImage(150, 250, TRUE);

// Display the output image
header("Content-Type: image/png");
echo $gmagick->getImageBlob();
?>

Output:

Reference: http://php.net/manual/en/gmagick.thumbnailimage.php