Home Backend Development PHP Tutorial ueditor picture watermark

ueditor picture watermark

Jul 25, 2016 am 08:49 AM

  1. /*PHP picture adding text watermark library
  2. This class library currently only supports text watermarks, the position is the lower right corner, the color is random
  3. Calling method:
  4. 1. Add watermark when needed Introduce the class library at the top of the file:
  5. include_once 'imageClass.php';
  6. 2. Declare the new class:
  7. $tpl=new image_fu;
  8. 3. Provide parameters for the image watermark:
  9. $tpl->img (image path, watermark Text, font path, font size, font angle);
  10. For example: $tpl->img('abc.jpg','This is watermark text','ziti.ttf',30,0)
  11. */
  12. class image_fu{
  13. private $image;
  14. private $img_info;
  15. private $img_width;
  16. private $img_height;
  17. private $img_im;
  18. private $img_text;
  19. private $img_ttf='';
  20. private $img_new;
  21. private $img_text_size;
  22. private $img_jd;
  23. function img($img='',$txt='',$ttf='',$size=12,$jiaodu=0){
  24. if(isset($img )&&file_exists($img)){//Check whether the image exists
  25. $this->image =$img;
  26. $this->img_text=$txt;
  27. $this->img_text_size=$size;
  28. $this ->img_jd=$jiaodu;
  29. if(file_exists($ttf)){
  30. $this->img_ttf=$ttf;
  31. }else{
  32. exit('Font file: '.$ttf.' does not exist!' );
  33. }
  34. $this->imgyesno();
  35. }else{
  36. exit('Image file:'.$img.' does not exist');
  37. }
  38. }
  39. private function imgyesno(){
  40. $this->img_info =getimagesize($this->image);
  41. $this->img_width =$this->img_info[0];//Image width
  42. $this->img_height=$this- >img_info[1];//Picture height
  43. //Detect picture type
  44. switch($this->img_info[2]){
  45. case 1:$this->img_im = imagecreatefromgif($this-> image);break;
  46. case 2:$this->img_im = imagecreatefromjpeg($this->image);break;
  47. case 3:$this->img_im = imagecreatefrompng($this->image);break ;
  48. default:exit('The image format does not support watermarks');
  49. }
  50. $this->img_text();
  51. }
  52. private function img_text(){
  53. imagealphablending($this->img_im, true);
  54. //Set color
  55. $color=imagecolorallocate($this->img_im,255,255,255);
  56. $txt_height=$this->img_text_size;
  57. $txt_jiaodu=$this->img_jd;
  58. $ ttf_im=imagettfbbox($txt_height,$txt_jiaodu,$this->img_ttf,$this->img_text);
  59. $w = $ttf_im[2] - $ttf_im[6];
  60. $h = $ttf_im[3] - $ttf_im[7];
  61. //$w = $ttf_im[7];
  62. //$h = $ttf_im[8];
  63. unset($ttf_im);
  64. $txt_y =$this->img_height *0.5;
  65. $txt_x =$this->img_width*0.2;
  66. //$txt_y =0;
  67. //$txt_x =0;
  68. $this->img_new=@imagettftext($this-> ;img_im,$txt_height,$txt_jiaodu,$txt_x,$txt_y,$color,$this->img_ttf,$this->img_text);
  69. @unlink($this->image);//Delete image
  70. switch($this->img_info[2]) {//Get the format of the background image
  71. case 1:imagegif($this->img_im,$this->image);break;
  72. case 2:imagejpeg( $this->img_im,$this->image);break;
  73. case 3:imagepng($this->img_im,$this->image);break;
  74. default: exit('Watermark image failed' );
  75. }
  76. }
  77. //Show image
  78. function img_show(){echo ''.$ this->img_text.'';}
  79. //Release memory
  80. private function img_nothing(){
  81. unset($this->img_info);
  82. imagedestroy($this->img_im);
  83. }
  84. }
  85. ?>
Copy code
  1. /**
  2. * Created by JetBrains PhpStorm.
  3. * User: taoqili
  4. * Date: 12-7-18
  5. * Time: 上午10:42
  6. */
  7. header("Content-Type: text/html; charset=utf-8");
  8. error_reporting(E_ERROR | E_WARNING);
  9. include "Uploader. class.php";
  10. //The description form name in the upload picture box,
  11. $title = htmlspecialchars($_POST['pictitle'], ENT_QUOTES);
  12. $path = htmlspecialchars($_POST['dir'], ENT_QUOTES) ;
  13. //Upload configuration
  14. $config = array(
  15. "savePath" => ($path == "1" ? "upload/" : "upload1/"),
  16. "maxSize" => 1000, / /Unit KB
  17. "allowFiles" => array(".gif", ".png", ".jpg", ".jpeg", ".bmp")
  18. );
  19. //Generate the upload instance object and complete Upload
  20. $up = new Uploader("upfile", $config);
  21. /**
  22. * Get the parameters and array structure corresponding to the uploaded file
  23. * array(
  24. * "originalName" => "", //Original file name
  25. * "name" => "", //New file name
  26. * "url" => "", //Returned address
  27. * "size" => "", //File size
  28. * "type" => "" , //File type
  29. * "state" => "" //Upload status, "SUCCESS" must be returned when the upload is successful
  30. * )
  31. */
  32. $info = $up->getFileInfo();
  33. /**
  34. * Return json data to the browser
  35. * {
  36. * 'url' :'a.jpg', //The saved file path
  37. * 'title' :'hello', //File description, for pictures It will be added to the title attribute on the front end
  38. * 'original' :'b.jpg', //Original file name
  39. * 'state' :'SUCCESS' //Upload status, SUCCESS will be returned when successful, any other value will be returned as is to the picture upload box
  40. * }
  41. */
  42. /* include "imgwater.php";
  43. $tpl=new image_fu;
  44. $tpl->img($info['url'],'http://www.zgxbzh.com/','simsun.ttc ',30,0);*/
  45. echo "{'url':'" . $info["url"] . "','title':'" . $title . "','original':' " . $info["originalName"] . "','state':'" . $info["state"] . "'}";
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