Share a remote picture of PHP capture

2. <?php
4. /* Use PHP to achieve remote image capture function. Basic process:
8. 1, get the target website picture address.
12. 2, read the picture content.
16. 3, create the path to save the picture and name the picture.
20. 4, write the picture content.
24. 5, complete.
28. We do this by writing a few functions. */
32. function Make_dir () to create a directory. Determine if the picture file directory you want to save exists, create a directory if it does not exist, and set the directory to write permissions.
34. function Make_dir ($path) {
36. if (!file_exists ($path)) {//No presence is established
38. $MK = @mkdir ($path, 0777); Permissions
40. @chmod ($path, 0777);
42. }
44. return true;
46. }
50. function Read_filetext () Gets the picture content. Use fopen to open the picture file, and then fread read the picture file contents.
52. function Read_filetext ($filepath) {
54. $filepath =trim ($filepath);
56. $HTMLFP = @fopen ($filepath, "R");
58. Remote
60. if (Strstr ($filepath, "://")) {
62. while ($data = @fread ($HTMLFP, 500000)) {
64. $string. = $data;
66. }
68. }
70. Local
72. else{
74. $string = @fread ($HTMLFP, @filesize ($filepath));
76. }
78. @fclose ($HTMLFP);
80. return $string;
82. }
88. The function Write_filetext () writes the file, writes the picture content fputs to the file, namely saves the picture file.
90. function Write_filetext ($filepath, $string) {
92. $string =stripslashes ($string);
94. $fp = @fopen ($filepath, "w");
96. @fputs ($fp, $string);
98. @fclose ($FP);
100. }
106. function Get_filename () Gets the name of the picture, or you can customize the name of the file you want to save.
108. function Get_filename ($filepath) {
110. $FR =explode ("/", $filepath);
112. $count =count ($FR)-1;
114. return $FR [$count];
116. }
122. Several functions are then combined, called in the function Save_pic (), and finally the saved picture path is returned.
124. function Save_pic ($url, $savepath = ' ") {
126. Processing addresses
128. $url =trim ($url);
130. $url =str_replace ("", "%20", $url);
132. Read files
134. $string =read_filetext ($url);
136. if (Emptyempty ($string)) {
138. Echo ' can't read file '; exit;
140. }
142. Filename
144. $filename = Get_filename ($url);
146. Storage Directory
148. Make_dir ($savepath); Create a storage directory
150. File address
152. $filepath = $savepath. $filename;
154. Write a file
156. Write_filetext ($filepath, $string);
158. return $filepath;
160. }
166. The final step is to call the Save_pic () function to save the picture, and we'll use the following code to do the test.
168. Destination picture Address
170. $pic = "/program/uploadpic/2013-5/2013510152511166.jpg";
172. For ($i =100 $i <=204; $i + +)
174. // {
176. $pic = ' http://cache.soso.com/img/img/e '. $i '. gif ';
178. Save Directory
180. $savepath = "images/";
182. Echo save_pic ($pic, $savepath). " <br/> ";
184. // }
190. /*
192. In practice, we may collect the content of a certain site, such as product information, including the collection of photos to save the chain to the Web server. At this time we can use the regular matching page content, the pages of matching pictures are found, and then downloaded to the Web server, complete the collection of pictures. The following code is for testing only:
194. */
196. function Get_pic ($cont, $path) {
198. $pattern _src = '/<[imgimg].*?src=&/.jpg]) "[\]].*? [\/]?>/';
200. $num = Preg_match_all ($pattern _src, $cont, $match _src);
202. $pic _arr = $match _src[1]; Get an array of pictures
204. foreach ($pic _arr as $pic _item) {//loop out the address of each picture
206. Save_pic ($pic _item, $path); Download and save pictures
208. echo "[ok]..! <br/> ";
210. }
212. }
216. Then we analyze the content of the page, find out the main content, call Get_pic () to achieve the preservation of the picture.
220. We collected Pacific Internet a picture of the content page of the mobile phone report php100.com
222. $url = "http://gz.pconline.com.cn/321/3215791.html";
226. $content = file_get_contents ($url);//Get Web page content
228. $preg = ' #<div class= "Art_con" > (. *) <div class= "ivy620 ivy620ex" ></div> #iUs ";
230. Preg_match_all ($preg, $content, $arr);
232. $cont = $arr [1][0];
234. Get_pic ($cont, ' img/');
238. /*
240. The above code to test, you can collect pictures, but still some scenes did not take into account, such as the target site did more than 302 jumps, the target site did a variety of anti-collection, left to like tossing students to try it.
242. */
244. ?>