1. $image->wprint_img();//执行图片水印
2. $image->wprint_string();//执行文字水印
3. class editimage{
4. private $imagefile;//图片文件
5. private $smallimg;//水印图片
6. private $string;//水印文字
7. private $position;//存放位置
8. private $dst_x=600;//原始图片打水印x坐标
9. private $dst_y=0;//原始图片打水印y坐标
10. private $str_x=450;
11. private $str_y=200;
12. private $font="c:windows ontssimhei.ttf";//原始图片打水印字体路径
13. private $imgej;// imagecolorallocate后的变量
14. function __get($value){
15. return $this->$value;
16. }
17. function __set($property,$value){
18. $this->$property=$value;
19. }
20. /**
21. * 构造函数初始化
22. *
23. * @param string $imagefile 被上水印的文件
24. * @param string $smallimg 水印文件
25. * @param string $string 水印文字
26. * @param string $position 存放位置
27. * @param int $dst_x 被上水印的图片x
28. * @param int $dst_y 被上水印的图片y
29. */
30. function __construct($imagefile,$smallimg='',$string=''){//,$position='',$dst_x=0,$dst_y=0
31. $this->imagefile=$imagefile;
32. $this->smallimg=$smallimg;
33. $this->string=$string;
34. $this->imgej=$this->imagecreatef($this->imagefile);
35. }
36. function get_extname($file){//获取文件的后缀名
37. if (file_exists($this->imagefile)) {
38. $img=getimagesize($file);
39. switch ($img[2]){
40. case "1":
41. return "gif";
42. case "2":
43. return "jpg";
44. case "3":
45. return "png";
46. }
47. }else{
48. return false;
49. }
50. }
51. function getsize($file,$wh){//获取图大小. $wh：w获得宽，h获得高
52. $image=getimagesize($file);
53. if ($wh) {
54. switch ($wh){
55. case "w":
56. return $image[0];
57. case "h":
58. return $image[1];
59. }
60. }else{
61. return false;
62. }
63. }
64. function imagecreatef($file){//创建类型
65. if ($this->get_extname($file)) {
66. switch($this->get_extname($file)){
67. case "gif":
68. return imagecreatefromgif($file);
69. case "jpg":
70. return imagecreatefromjpeg($file);
71. case "png":
72. return imagecreatefrompng($file);
73. }
74. }else{
75. echo "文件不存在";
76. }
77. }
78. //水印图片处理
79. function wprint_img(){
80. if($this->smallimg){
81. imagecopy($this->imgej,$this->imagecreatef($this->smallimg),$this->dst_x,$this->dst_y,0,0,$this->getsize($this->smallimg,"w"),$this->getsize($this->smallimg,"h"));
82. }else{
83. return "水印图片不存在!";
84. }
85. }
86. //水印文字处理
87. function wprint_string(){
88. return imagettftext($this->imgej,20,0,$this->str_x,$this->str_y,imagecolorallocate($this->imgej,200,200,200),$this->font,iconv("gb2312","utf-8",$this->string));
89. }
90. function choose_imgouttype(){//输出
91. if($this->position){
92. $this->get_extname($this->imagefile);
93. switch ($this->get_extname($this->imagefile)){
94. case "gif":
95. return imagegif($this->imgej,$position);
96. case "jpg":
97. return imagejpeg($this->imgej,$this->position);
98. case "jpeg":
99. return imagejpeg($this->imgej,$this->position);
100. case "png":
101. return imagepng($this->imgej,$position);
102. }
103. }else{
104. switch ($this->get_extname($this->imagefile)){
105. case "gif":
106. return imagegif($this->imgej);
107. case "jpg":
108. return imagejpeg($this->imgej);
109. case "jpeg":
110. return imagejpeg($this->imgej);
111. case "png":
112. return imagepng($this->imgej);
113. }
114. }
115. }
116. }
117. //使用方法如下:
118. $image=new editimage("d90.gif","hknmtt.png","我的d90");
119. $image->wprint_img();//执行图片水印
120. $image->wprint_string();//执行文字水印,开源代码phpfensi.com
121. $image->choose_imgouttype();