php+jquery在线切图代码[仿dedecms]_PHP教程

php+jquery在线切图代码[防dedecms]


 

 // get variables
 $imgfile = $_GET['image'];
 $cropStartX = $_GET['cropStartX'];
 $cropStartY = $_GET['cropStartY'];
 $cropW = $_GET['cropWidth'];
 $cropH = $_GET['cropHeight'];

 // Create two images
 $origimg = imagecreatefromjpeg($imgfile);
 $cropimg = imagecreatetruecolor($cropW,$cropH);

 // Get the original size
 list($width, $height) = getimagesize($imgfile);

 // Crop
 imagecopyresized($cropimg, $origimg, 0, 0, $cropStartX, $cropStartY, $width, $height, $width, $height);

 // force download nes image
 header("Content-type: image/jpeg");
 header('Content-Disposition: attachment; filename="'.$imgfile.'"');
 imagejpeg($cropimg);

 // destroy the images
 imagedestroy($cropimg);
 imagedestroy($origimg);
?>

这里是图片上的，

 
 if(!empty($_FILES["uploadImage"])) {
    // get file name
  $filename = basename($_FILES['uploadImage']['name']);
  
  // get extension
    $ext = substr($filename, strrpos($filename, '.') + 1);
    
    // check for jpg only
    if ($ext == "jpg") {
        // generate unique file name
     $newName = 'images/'.time().'.'.$ext;
     
     // upload files
         if ((move_uploaded_file($_FILES['uploadImage']['tmp_name'], $newName))) {
   
          // get height and width for image uploaded
          list($width, $height) = getimagesize($newName);
          
          // return json data
             echo '{"image" : "'.$newName.'", "height" : "'.$height.'", "width" : "'.$width.'" }';
         }
         else {
             echo '{"error" : "An error occurred while moving the files"}';
         }
    }
    else {
       echo '{"error" : "Invalid image format"}';
    }
 }
?>