PHP Imagick getImageFormat()用法及代碼示例

<?php  
// require_once('path/vendor/autoload.php'); 
   
// Create an Imagick Object 
$image = new Imagick( 
'https://media.geeksforgeeks.org/wp-content/uploads/geeksforgeeks-15.png'); 
   
// Use getImageFormat function to find the formats  
// of image 
   
$res= $image->getImageFormat(); 
   
// Display the format sequence of image 
echo $res;  
?>

<?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); 
  
$metrix = $im->queryFontMetrics($draw, $string); 
$draw->annotation(0, 40, $string); 
$im->newImage($metrix['textWidth'], $metrix['textHeight'], 
         new ImagickPixel('white')); 
  
// Draw the image           
$im->drawImage($draw); 
  
$im->setImageFormat('jpeg'); 
  
// Imagick function to get format of created image 
$res= $im->getImageFormat(); 
  
// Display the format sequence of image 
echo $res; 
?>