PHP Find file Content keyword Instance Code _php tutorial

4. /**
6. * File: search.php
8. * Function: Search the HTML file under the specified directory
10. */
12. /* Basic function */
16. Get file functions under Directory
18. function GetFile ($dir)
20. {
22. $DP = Opendir ($dir);
24. $FILEARR = Array ();
26. while (!false = = $curFile = Readdir ($DP)) {
28. if ($curFile! = "." && $curFile! = ":" && $curFile! = "") {
30. if (Is_dir ($curFile)) {
32. $FILEARR = GetFile ($dir. " /". $curFile);
34. } else {
36. $FILEARR [] = $dir. " /". $curFile;
38. }
40. }
42. }
44. return $FILEARR;
46. }
50. Get file Contents
52. function Getfilecontent ($file)
54. {
56. if (! $fp = fopen ($file, "R")) {
58. Die ("Cannot open file $file");
60. }
62. while ($text = Fread ($fp, 4096)) {
64. $fileContent. = $text;
66. }
68. return $fileContent;
70. }
74. Search for specified files
76. function SearchText ($file, $keyword)
78. {
80. $text = Getfilecontent ($file);
82. if (Preg_match ("/$keyword/I", $text)) {
84. return true;
86. }
88. return false;
90. }
94. Search out the title of the article
96. function GetFileTitle ($file, $default = "None subject")
98. {
100. $fileContent = Getfilecontent ($file);
102. $sResult = Preg_match ("/.*/i ", $fileContent, $matchResult);
104. $title = preg_replace (Array ("/()/I ","/()/I ")," ", $matchResult [0]);
106. if (empty ($title)) {
108. return $default;
110. } else {
112. return $title;
114. }
116. }
120. Get File description Information
122. function Getfiledescribe ($file, $length =200, $default = "None describe")
124. {
126. $metas = Get_meta_tags ($file);
128. if ($meta [description]! = "") {
130. return $metas [description];
132. }
134. $fileContent = Getfilecontent ($file);
136. Preg_match ("/( <> < body=""> )/is", $fileContent, $matchResult);<>
138. $pattern = Array ("/(<[^x80-xff] >)/I", "/()/I", "/()/I", "/()/I", " /([])/I", "/&/i", "/"/","/"////", "/ S/");
140. $description = Preg_replace ($pattern, "", $matchResult [0]);
142. $description = mb_substr ($description, 0, $length). "...";
146. return $description;
148. }
152. Highlight keywords in search results
154. function Highlightkeyword ($text, $keyword, $color = "#C60A00")
156. {
158. $newword = "$keyword";
160. $text = Str_replace ($keyword, $newword, $text);
162. return $text;
164. }
168. Get file Size (KB)
170. function GetFileSize ($file)
172. {
174. $filesize = Intval (filesize ($file)/1024). " K ";
176. return $filesize;
178. }
182. Gets the time the file was last modified
184. function Getfiletime ($file)
186. {
188. $filetime = Date ("y-m-d", Filemtime ($file));
190. return $filetime;
192. }
196. Search all Files under directory
198. function Searchfile ($dir, $keyword)
200. {
202. $sFile = GetFile ($dir);
204. if (count ($sFile) <= 0) {
206. return false;
208. }
210. $sResult = Array ();
212. foreach ($sFile as $file) {
214. if (SearchText ($file, $keyword)) {
216. $sResult [] = $file;
218. }
220. }
222. if (count ($sResult) <= 0) {
224. return false;
226. } else {
228. return $sResult;
230. }
232. }
236. /* Test Code */
240. Specify the directory to search
242. $dir = "./php_linux";
244. Keywords to search for
246. $keyword = "SendMail";
250. $FILEARR = Searchfile ($dir, $keyword);
252. $searchSum = count ($FILEARR);
256. echo Search keyword: $keyword Search catalog: $dir search results: $searchSum
     
     ";
260. if ($searchSum <= 0) {
262. echo "No results found";
264. } else {
266. For

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