Add watermark function to upload pictures to Baidu UE editor, ue watermark_PHP tutorial

Add watermark function to the pictures uploaded by Baidu UE editor. ue watermark

The pictures uploaded by UEditor editor are automatically extracted, but the pictures do not have the watermark function. Below, the editor will share with you Get up and take a look.

The UEditor editor does not have the function of uploading pictures and adding watermarks, and requires secondary development. This example is to perform secondary development of the Baidu editor in the PHPCMS system and add the function of uploading pictures and adding watermarks.

First open the php folder in the UEditor editor file directory, open Uploader.class.php, copy the PHPCMS method of adding watermarks, add it to the end of all member methods of this class, and then modify it as follows:

//图片加水印
public function watermark($source, $target = '', $w_pos = '', $w_img = '', $w_text = '99danji',$w_font = 8, $w_color = '#ff0000') {
  $this->w_img = 'watermark.png';
  $this->w_pos = 9;
  $this->w_minwidth = 400;
  $this->w_minheight = 200;
  $this->w_quality = 80;
  $this->w_pct = 85;
 
  $w_pos = $w_pos ? $w_pos : $this->w_pos;
  $w_img = $w_img ? $w_img : $this->w_img;
  //if(!$this->watermark_enable || !$this->check($source)) return false;
  if(!$target) $target = $source;
  //$w_img = PHPCMS_PATH.$w_img;
  //define('WWW_PATH', dirname(dirname(dirname(__FILE__)));
  $w_img = '../../../images/water/'.$w_img;
  $source_info = getimagesize($source);
  $source_w  = $source_info[0];
  $source_h  = $source_info[1];
  //if($source_w < $this->w_minwidth || $source_h < $this->w_minheight) return false;
  switch($source_info[2]) {
    case 1 :
      $source_img = imagecreatefromgif($source);
      break;
    case 2 :
      $source_img = imagecreatefromjpeg($source);
      break;
    case 3 :
      $source_img = imagecreatefrompng($source);
      break;
    default :
      return false;
  }
  if(!empty($w_img) && file_exists($w_img)) {
    $ifwaterimage = 1;
    $water_info  = getimagesize($w_img);
    $width    = $water_info[0];
    $height    = $water_info[1];
    switch($water_info[2]) {
      case 1 :
        $water_img = imagecreatefromgif($w_img);
        break;
      case 2 :
        $water_img = imagecreatefromjpeg($w_img);
        break;
      case 3 :
        $water_img = imagecreatefrompng($w_img);
        break;
      default :
        return;
    }
  } else {    
    $ifwaterimage = 0;
    $temp = imagettfbbox(ceil($w_font*2.5), 0, PC_PATH.'libs/data/font/elephant.ttf', $w_text);
    $width = $temp[2] - $temp[6];
    $height = $temp[3] - $temp[7];
    unset($temp);
  }
  switch($w_pos) {
    case 1:
      $wx = 5;
      $wy = 5;
      break;
    case 2:
      $wx = ($source_w - $width) / 2;
      $wy = 0;
      break;
    case 3:
      $wx = $source_w - $width;
      $wy = 0;
      break;
    case 4:
      $wx = 0;
      $wy = ($source_h - $height) / 2;
      break;
    case 5:
      $wx = ($source_w - $width) / 2;
      $wy = ($source_h - $height) / 2;
      break;
    case 6:
      $wx = $source_w - $width;
   $wy = ($source_h - $height) / 2;
      break;
    case 7:
      $wx = 0;
      $wy = $source_h - $height;
      break;
    case 8:
      $wx = ($source_w - $width) / 2;
      $wy = $source_h - $height;
      break;
    case 9:
      $wx = $source_w - $width;
      $wy = $source_h - $height;
      break;
    case 10:
      $wx = rand(0,($source_w - $width));
      $wy = rand(0,($source_h - $height));
      break;       
    default:
      $wx = rand(0,($source_w - $width));
      $wy = rand(0,($source_h - $height));
      break;
  }
  if($ifwaterimage) {
    if($water_info[2] == 3) {
      imagecopy($source_img, $water_img, $wx, $wy, 0, 0, $width, $height);
    } else {
      imagecopymerge($source_img, $water_img, $wx, $wy, 0, 0, $width, $height, $this->w_pct);
    }
  } else {
    if(!empty($w_color) && (strlen($w_color)==7)) {
      $r = hexdec(substr($w_color,1,2));
      $g = hexdec(substr($w_color,3,2));
      $b = hexdec(substr($w_color,5));
    } else {
      return;
    }
    imagestring($source_img,$w_font,$wx,$wy,$w_text,imagecolorallocate($source_img,$r,$g,$b));
  }
  
  switch($source_info[2]) {
    case 1 :
      imagegif($source_img, $target);
      break;
    case 2 :
      imagejpeg($source_img, $target, $this->w_quality);
      break;
    case 3 :
      imagepng($source_img, $target);
      break;
    default :
      return;
  }
 
  if(isset($water_info)) {
    unset($water_info);
  }
  if(isset($water_img)) {
    imagedestroy($water_img);
  }
  unset($source_info);
  imagedestroy($source_img);
  return true;
}
 
public function check($image) {
  return extension_loaded('gd') && preg_match("/\.(jpg|jpeg|gif|png)/i", $image, $m) && file_exists($image) && function_exists('imagecreatefrom'.($m[1] == 'jpg' &#63; 'jpeg' : $m[1]));
}

Compared with the part I modified, since phpcms watermark can be managed and set in the background, the watermark method that comes with phpcms obtains the path by reading the configuration file, and obtains the parameter settings by reading the database settings, then these places need to be set manually.

By the way, we need to add a function in the upFile method:

Copy code The code is as follows:
if ($this->watermark) {
$this->watermark($this->filePath,$this->filePath);
}

Then open the action_upload.php file in the php directory of UEditor Baidu Editor, and add the parameters of whether to add a watermark:

/* 上传配置 */
$base64 = "upload";
switch (htmlspecialchars($_GET['action'])) {
  case 'uploadimage':
    $config = array(
      "pathFormat" => $CONFIG['imagePathFormat'],
      "maxSize" => $CONFIG['imageMaxSize'],
      "allowFiles" => $CONFIG['imageAllowFiles']
    );
    $fieldName = $CONFIG['imageFieldName'];
    $watermark = true;
    break;

Then there is another sentence at the end that needs to be changed to:

Copy code The code is as follows:
/* Generate the upload instance object and complete the upload */
$up = new Uploader($fieldName, $config, $base64, $watermark);

That’s it. This article is mainly to provide ideas and reference.

The above is the entire content of this article. I hope you will like it and it will be helpful to you in using the ue editor.

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