$ico_pic 是你要给图片加水印的水印图片,其它的参数都有详细的说明,如果你正在找这类代码可以下载保存成php文件,再利用后面说的调用方法来调用生成水印图片类代码.

php图片增加中文与图片水印代码如下:

1. <?php
2. class smallpic{
3. private $src_pic;//原图
4. private $ico_pic = "003.png";//水印图
5. private $ico_text = "水印";//水印文字
6. private $small_width;//缩略图宽度
7. private $small_height;//缩略图高度
8. private $is_ico_pic = true;//是否加图片水印
9. private $is_text = true;//是否加文字水印
10. private $src_x = 20;//水印在原图的x坐标
11. private $src_y = 20;//水印在原图的y坐标
12. private $ut = "utf-8";//文字编码
13. private $font_color = "#990000";//文字水印颜色
14. private $samll_pic_name = "smallpic";//小图的名称
15. private $big_pic_name = "bigpic";//大图的名称
16. function __construct($src_pic,$small_width,$small_height){
17. $this->checkfile($src_pic);
18. $this->checkfile($this->ico_pic);
19. $this->src_pic = $src_pic;
20. $this->small_width = $small_width;
21. $this->small_height = $small_height;
22. }
23. private function __get($property_name){
24. return $this->$property_name;
25. }
26. private function __set($property_name,$value){
27. return $this->$property_name = $value;
28. }
29. /**
30. * 取得图片的一些基本信息，类型为array
31. */
32. function getimageinfo($image){
33. return @getimagesize($image);
34. }
35. /**
36. * 把图片加载到php中
37. * $image 传进来的图片
38. */
39. function getimage($image){
40. $image_info = $this->getimageinfo($image);
41. switch($image_info[2]){
42. case 1:
43. $img = @imagecreatefromgif($image);
44. break;
45. case 2:
46. $img = @imagecreatefromjpeg($image);
47. break;
48. case 3:
49. $img = @imagecreatefrompng($image);
50. break;
51. }
52. return $img;
53. }
54. function createimageforsuffix($big_pic,$new_pic){
55. $image_info = $this->getimageinfo($this->src_pic);
56. switch($image_info[2]){
57. case 1:
58. //输出大图
59. @imagegif($big_pic,$this->big_pic_name.".gif");
60. //输出小图
61. @imagegif($new_pic,$this->samll_pic_name.".gif");
62. break;
63. case 2:
64. //输出大图
65. @imagejpeg($big_pic,$this->big_pic_name.".jpg");
66. //输出小图
67. @imagejpeg($new_pic,$this->samll_pic_name.".jpg");
68. break;
69. case 3:
70. //输出大图
71. @imagepng($big_pic,$this->big_pic_name.".png");
72. //输出小图
73. @imagepng($new_pic,$this->samll_pic_name.".png");
74. break;
75. }
76. }
77. function checkfile($file){
78. if(!file_exists($file)){
79. die("图片:".$file."不存在！");
80. }
81. }
82. function createsmallimage(){
83. $big_pic = $this->getimage($this->src_pic);
84. $big_pic_info = $this->getimageinfo($this->src_pic);
85. $new_pic = $this->getimage($this->ico_pic);
86. $new_pic_info = $this->getimageinfo($this->ico_pic);
87. $rgb = $this->convcolor();
88. //判断是按宽比例缩放还是按高比例缩放
89. if($big_pic_info[0] > $big_pic_info[1]){
90. $ratio = $this->small_width/(int)$big_pic_info[0];
91. $small_pic_width = $this->small_width;
92. $small_pic_height = (int)($big_pic_info[1]*$ratio);
93. }else{
94. $ratio = $this->small_height/(int)$big_pic_info[1];
95. $small_pic_height = $this->small_height;
96. $small_pic_width = (int)($big_pic_info[0]*$ratio);
97. }
98. //echo $small_pic_width = (int)($big_pic_info[0]*$ratio);
99. //echo $small_pic_height = (int)($big_pic_info[1]*$ratio);
100. //是否打图片水印
101. if ($this->is_ico_pic){
102. //打图片水印
103. @imagecopy($big_pic,$new_pic,$this->src_x,$this->src_y,0,0,$new_pic_info[0],$new_pic_info[1]);
104. }
105. //是否打文字水印
106. if ($this->is_text){
107. //设置文字颜色
108. $text_color = @imagecolorallocate($big_pic,$rgb[0],$rgb[1],$rgb[2]);
109. //转换文字编码
110. $text = @iconv($this->ut,"utf-8",$this->ico_text);
111. //打文字水印
112. @imagettftext($big_pic,12,0,$this->src_x,$this->src_y,$text_color,"simkai_0.ttf",$text);
113. }
114. //新建一个新图片的画板
115. $new_pic = @imagecreatetruecolor($small_pic_width,$small_pic_height);
116. //生成缩略图
117. @imagecopyresized($new_pic,$big_pic,0,0,0,0,$small_pic_width,$small_pic_height,$big_pic_info[0],$big_pic_info[1]);
118. //输出图
119. $this->createimageforsuffix($big_pic,$new_pic);
120. }
121. /**
122. * 类内部的功能函数把#000000转换成255,255,255
123. */
124. private function convcolor(){
125. $rgb = array();
126. $color = preg_replace("/#/","",$this->font_color);
127. $c = hexdec($color);
128. $r = ($c >> 16) & 0xff;
129. $g = ($c >> 8) & 0xff;
130. $b = $c & 0xff;
131. $rgb[0] = $r;
132. $rgb[1] = $g;
133. $rgb[2] = $b;
134. return $rgb;
135. }
136. }
137. //调用方法
138. $pic = new smallpic("002.jpg",600,300);
139. $pic->is_text = true;
140. $pic->is_ico_pic = true;
141. $pic->ico_pic = "./images/004.png";
142. $pic->ico_text = "新年快乐!";
143. //$pic->src_x = 80;
144. $pic->src_y = 80;
145. $pic->ut = "utf-8";
146. $pic->font_color = "#0521f8";
147. $pic->samll_pic_name = "hslsamll";
148. $pic->big_pic_name = "hslbig";
149. $pic->createsmallimage();
150. //开源代码phpfensi.com
151. ?>