PHP : Image Resize and Crop Using ImageMagick

gistfile1

<?php
// Image Resize and Crop using ImageMagick

// the Function
//imageresize to Thumb
function imageresize($src,$dest,$size=75){
   
   list($w,$h) = getimagesize($src);

   if($w > $h){
      exec("convert ".$src." -resize x".$size." -quality 100 ".$dest);
   }else{
      exec("convert ".$src." -resize ".$size." -quality 100 ".$dest);
   }

   exec("convert ".$dest." -gravity Center -crop ".$size."x".$size."+0+0 ".$dest);

}
?>

<?php

// Set paraters
$imageurl = 'http://blog.hillaryfox.com/wp-content/uploads/2012/08/ArchesPano.jpg'; // Original Image
$imagename = 'image.jpg'; // final image filename
$thumbdir = 'thumbs/'; // where to save the thumbnails

// Checks if there is a $thumbdir if not it creates it
if(!is_dir($thumbdir)){  
        mkdir($thumbdir);         
        } 

// Activating the function
imageresize($imageurl,$thumbdir.$imagename,300);
// Print result
   print "
   <p>Here is your squared image.</p>
   <p><img src='$thumbdir$imagename' border='0'></p>
   ";
?>