PHP | Gmagick getimageresolution() Function

The Gmagick::getimageresolution() function is an inbuilt function in PHP which is used to get the resolution of an image object.

Syntax:

array Gmagick::getimageresolution( void )

Parameters: This function does not accept any parameter.



Return Value: This function returns the resolution as an array.

Below program illustrates the Gmagick::getimageresolution() function in PHP:

Original Image 1:
https://media.geeksforgeeks.org/wp-content/uploads/geeks-21.png

Program 1:

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<?php
   
// Create an Gmagick image object
$gmagick = new Gmagick(
   
// Getting Resolution of created image
// using getimageresolution function
$res = $gmagick->getimageresolution();
echo "X = ".$res['x'] . "</br>";
echo "Y = ".$res['y'] ." </br>";
?>

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Output:

X = 37.8
Y = 37.8

Original Image 2:
https://media.geeksforgeeks.org/wp-content/uploads/Screenshot-from-2018-10-16-23-23-54.png

Program 2:

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<?php 
  
$string = "Computer Science portal for Geeks!"
     
// Creating new image of above String 
// and add color and background 
$im = new Gmagick(); 
$draw = new GmagickDraw(); 
    
// Fill the color in image 
$draw->setFillColor(new GmagickPixel('green')); 
    
// Set the text font size 
$draw->setFontSize(50); 
    
$metrix = $im->queryFontMetrics($draw, $string); 
$draw->annotation(0, 40, $string); 
$im->newImage($metrix['textWidth'], $metrix['textHeight'], 
         new GmagickPixel('white')); 
             
// Draw the image          
$im->drawImage($draw); 
$im->setImageResolution(50, 50); 
  
// getting Resolution of created image
// using getimageresolution function
$res = $im->getimageresolution();
echo "X = ".$res['x'] . "</br>";
echo "Y = ".$res['y'] ." </br>";
?> 

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Output:

X = 50
Y = 50 

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



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