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PHP | Imagick rollImage() Function

Last Updated : 07 Dec, 2021
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The Imagick::rollImage() function is an inbuilt function in PHP which is used to roll an image. Syntax:
bool Imagick::rollImage( $x, $y )
Parameters: This function accepts two parameters as mentioned above and described below:
  • $x: This parameter stores the value of the X offset.
  • $y: This parameter stores the value of the Y offset.
Return Value: This function returns True on success. Original Image: Below program illustrate Imagick::rollImage() function in PHP: Program 1: php
<?php

// Create an Imagick object  
$imagick = new \Imagick(
'https://media.geeksforgeeks.org/wp-content/uploads/geeksforgeeks-19.png');

// Use rollImage function
$imagick->rollImage(60, 50);
    
header("Content-Type: image/jpg");

// Display the image
echo $imagick->getImageBlob();
?>
Output: Program 2: php
<?php 

$string = "Computer Science portal for Geeks!"; 

// Creating new image of above String 
// and add color and background 
$im = new Imagick(); 
$draw = new ImagickDraw(); 

// Fill the color in image 
$draw->setFillColor(new ImagickPixel('green')); 

// Set the text font size 
$draw->setFontSize(50); 

$matrix = $im->queryFontMetrics($draw, $string); 
$draw->annotation(0, 40, $string); 
$im->newImage($matrix['textWidth'], $matrix['textHeight'], 
        new ImagickPixel('white')); 

// Draw the image         
$im->drawImage($draw); 

// Roll the Image
$im->rollImage(70, 50);

$im->setImageFormat('jpeg'); 

header("Content-Type: image/jpg"); 

// Display the output image 
echo $im->getImageBlob(); 
?> 
Output: rollImage Reference: http://php.net/manual/en/imagick.rollimage.php

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