php根据文件头验证文件类型的代码

2. /**
3. * 检证文件类型类
4. *
5. * @author Silver
6. * by bbs.it-home.org
7. */
8. class FileTypeValidation
9. {
10. // 文件类型，不同的头信息
11. private static $_fileFormats = Array(
12. 'jp2' => '0000000C6A502020',
    '3gp' => '0000002066747970',
13. '3gp5' => '0000001866747970',
14. 'm4a' => '00000020667479704D3441',
15. 'ico' => '00000100',
16. 'spl' => '00000100',
17. 'vob' => '000001BA',
18. 'cur' => '00000200',
19. 'wb2' => '00000200',
20. 'wk1' => '0000020006040600',
21. 'wk3' => '00001A0000100400',
22. 'wk4' => '00001A0002100400',
23. 'wk5' => '00001A0002100400',
24. '123' => '00001A00051004',
25. 'qxd' => '00004D4D585052',
26. 'mdf' => '010F0000',
27. 'tr1' => '0110',
28. 'rgb' => '01DA01010003',
29. 'drw' => '07',
30. 'dss' => '02647373',
31. 'dat' => 'A90D000000000000',
32. 'db3' => '03',
33. 'qph' => '03000000',
34. 'adx' => '80000020031204',
35. 'db4' => '04',
36. 'n' => 'FFFE0000',
37. 'a' => 'FFFE0000',
38. 'skf' => '07534B46',
39. 'dtd' => '0764743264647464',
40. 'db' => 'D0CF11E0A1B11AE1',
41. 'pcx' => '0A050101',
42. 'mp' => '0CED',
43. 'doc' => 'D0CF11E0A1B11AE1',
44. 'nri' => '0E4E65726F49534F',
45. 'wks' => 'FF00020004040554',
46. 'pf' => '1100000053434341',
47. 'ntf' => '4E49544630',
48. 'nsf' => '4E45534D1A01',
49. 'arc' => '41724301',
50. 'pak' => '5041434B',
51. 'eth' => '1A350100',
52. 'mkv' => '1A45DFA393428288',
53. 'ws' => '1D7D',
54. 'gz' => '1F8B08',
55. 'tar.z' => '1FA0',
56. 'ain' => '2112',
57. 'lib' => '213C617263683E0A',
58. 'msi' => 'D0CF11E0A1B11AE1',
59. 'vmdk' => '4B444D',
60. 'dsp' => '23204D6963726F73',
61. 'amr' => '2321414D52',
62. 'hdr' => '49536328',
63. 'sav' => '24464C3240282329',
64. 'eps' => 'C5D0D3C6',
65. 'pdf' => '25504446',
66. 'fdf' => '25504446',
67. 'hqx' => '2854686973206669',
68. 'log' => '2A2A2A2020496E73',
69. 'ivr' => '2E524543',
70. 'rm' => '2E524D46',
71. 'rmvb' => '2E524D46',
72. 'ra' => '2E7261FD00',
73. 'au' => '646E732E',
74. 'cat' => '30',
75. 'evt' => '300000004C664C65',
76. 'asf' => '3026B2758E66CF11',
77. 'wma' => '3026B2758E66CF11',
78. 'wmv' => '3026B2758E66CF11',
79. 'wri' => 'BE000000AB',
80. '7z' => '377ABCAF271C',
81. 'psd' => '38425053',
82. 'sle' => '414376',
83. 'asx' => '3C',
84. 'xdr' => '3C',
85. 'dci' => '3C21646F63747970',
86. 'manifest' => '3C3F786D6C2076657273696F6E3D',
87. 'xml' => '3C3F786D6C2076657273696F6E3D22312E30223F3E',
88. 'msc' => 'D0CF11E0A1B11AE1',
89. 'fm' => '3C4D616B65724669',
90. 'mif' => '56657273696F6E20',
91. 'gid' => '4C4E0200',
92. 'hlp' => '4C4E0200',
93. 'dwg' => '41433130',
94. 'syw' => '414D594F',
95. 'abi' => '414F4C494E444558',
96. 'aby' => '414F4C4442',
97. 'bag' => '414F4C2046656564',
98. 'idx' => '5000000020000000',
99. 'ind' => '414F4C494458',
100. 'pfc' => '414F4C564D313030',
101. 'org' => '414F4C564D313030',
102. 'vcf' => '424547494E3A5643',
103. 'bin' => '424C4932323351',
104. 'bmp' => '424D',
105. 'dib' => '424D',
106. 'prc' => '424F4F4B4D4F4249',
107. 'bz2' => '425A68',
108. 'tar.bz2' => '425A68',
109. 'tbz2' => '425A68',
110. 'tb2' => '425A68',
111. 'rtd' => '43232B44A4434DA5',
112. 'cbd' => '434246494C45',
113. 'iso' => '4344303031',
114. 'clb' => '434F4D2B',
115. 'cpt' => '43505446494C45',
116. 'cru' => '43525553482076',
117. 'swf' => '465753',
118. 'ctf' => '436174616C6F6720',
119. 'dms' => '444D5321',
120. 'adf' => '5245564E554D3A2C',
121. 'dvr' => '445644',
122. 'ifo' => '445644',
123. 'cdr' => '52494646',
124. 'vcd' => '454E545259564344',
125. 'mdi' => '4550',
126. 'e01' => '4C5646090D0AFF00',
127. 'evtx' => '456C6646696C6500',
128. 'qbb' => '458600000600',
129. 'cpe' => '464158434F564552',
130. 'flv' => '464C56',
131. 'aiff' => '464F524D00',
132. 'eml' => '582D',
133. 'gif' => '47494638',
134. 'pat' => '47504154',
135. 'gx2' => '475832',
136. 'sh3' => '4848474231',
137. 'tif' => '4D4D002B',
138. 'tiff' => '4D4D002B',
139. 'mp3' => '494433',
140. 'koz' => '49443303000000',
141. 'crw' => '49491A0000004845',
142. 'cab' => '4D534346',
143. 'lit' => '49544F4C49544C53',
144. 'chi' => '49545346',
145. 'chm' => '49545346',
146. 'jar' => '5F27A889',
147. 'jg' => '4A47040E000000',
148. 'kgb' => '4B47425F61726368',
149. 'shd' => '68490000',
150. 'lnk' => '4C00000001140200',
151. 'obj' => '80',
152. 'pdb' => 'ACED000573720012',
153. 'mar' => '4D41723000',
154. 'dmp' => '504147454455',
155. 'hdmp' => '4D444D5093A7',
156. 'mls' => '4D563243',
157. 'mmf' => '4D4D4D440000',
158. 'nvram' => '4D52564E',
159. 'ppz' => '4D534346',
160. 'snp' => '4D534346',
161. 'tlb' => '4D53465402000100',
162. 'dvf' => '4D535F564F494345',
163. 'msv' => '4D535F564F494345',
164. 'mid' => '4D546864',
165. 'midi' => '4D546864',
166. 'dsn' => '4D56',
167. 'com' => 'EB',
168. 'dll' => '4D5A',
169. 'drv' => '4D5A',
170. 'exe' => '4D5A',
171. 'pif' => '4D5A',
172. 'qts' => '4D5A',
173. 'qtx' => '4D5A',
174. 'sys' => 'FFFFFFFF',
175. 'acm' => '4D5A',
176. 'ax' => '4D5A900003000000',
177. 'cpl' => 'DCDC',
178. 'fon' => '4D5A',
179. 'ocx' => '4D5A',
180. 'olb' => '4D5A',
181. 'scr' => '4D5A',
182. 'vbx' => '4D5A',
183. 'vxd' => '4D5A',
184. '386' => '4D5A',
185. 'api' => '4D5A900003000000',
186. 'flt' => '76323030332E3130',
187. 'zap' => '4D5A90000300000004000000FFFF',
188. 'sln' => '4D6963726F736F66742056697375616C',
189. 'jnt' => '4E422A00',
190. 'jtp' => '4E422A00',
191. 'cod' => '4E616D653A20',
192. 'dbf' => '4F504C4461746162',
193. 'oga' => '4F67675300020000',
194. 'ogg' => '4F67675300020000',
195. 'ogv' => '4F67675300020000',
196. 'ogx' => '4F67675300020000',
197. 'dw4' => '4F7B',
198. 'pgm' => '50350A',
199. 'pax' => '504158',
200. 'pgd' => '504750644D41494E',
201. 'img' => 'EB3C902A',
202. 'zip' => '504B0304140000',
203. 'docx' => '504B030414000600',
204. 'pptx' => '504B030414000600',
205. 'xlsx' => '504B030414000600',
206. 'kwd' => '504B0304',
207. 'odt' => '504B0304',
208. 'odp' => '504B0304',
209. 'ott' => '504B0304',
210. 'sxc' => '504B0304',
211. 'sxd' => '504B0304',
212. 'sxi' => '504B0304',
213. 'sxw' => '504B0304',
214. 'wmz' => '504B0304',
215. 'xpi' => '504B0304',
216. 'xps' => '504B0304',
217. 'xpt' => '5850434F4D0A5479',
218. 'grp' => '504D4343',
219. 'qemu' => '514649',
220. 'abd' => '5157205665722E20',
221. 'qsd' => '5157205665722E20',
222. 'reg' => 'FFFE',
223. 'sud' => '52454745444954',
224. 'ani' => '52494646',
225. 'cmx' => '52494646',
226. 'ds4' => '52494646',
227. '4xm' => '52494646',
228. 'avi' => '52494646',
229. 'cda' => '52494646',
230. 'qcp' => '52494646',
231. 'rmi' => '52494646',
232. 'wav' => '52494646',
233. 'cap' => '58435000',
234. 'rar' => '526172211A0700',
235. 'ast' => '5343486C',
236. 'shw' => '53484F57',
237. 'cpi' => 'FF464F4E54',
238. 'sit' => '5374756666497420',
239. 'sdr' => '534D415254445257',
240. 'cnv' => '53514C4F434F4E56',
241. 'cal' => 'B5A2B0B3B3B0A5B5',
242. 'info' => 'E310000100000000',
243. 'uce' => '55434558',
244. 'ufa' => '554641C6D2C1',
245. 'pch' => '564350434830',
246. 'ctl' => '56455253494F4E20',
247. 'ws2' => '575332303030',
248. 'lwp' => '576F726450726F',
249. 'bdr' => '5854',
250. 'zoo' => '5A4F4F20',
251. 'ecf' => '5B47656E6572616C',
252. 'vcw' => '5B4D535643',
253. 'dun' => '5B50686F6E655D',
254. 'sam' => '5B7665725D',
255. 'cpx' => '5B57696E646F7773',
256. 'cfg' => '5B666C7473696D2E',
257. 'cas' => '5F434153455F',
258. 'cbk' => '5F434153455F',
259. 'arj' => '60EA',
260. 'vhd' => '636F6E6563746978',
261. 'csh' => '6375736800000002',
262. 'p10' => '64000000',
263. 'dex' => '6465780A30303900',
264. 'dsw' => '64737766696C65',
265. 'flac' => '664C614300000022',
266. 'dbb' => '6C33336C',
267. 'acd' => '72696666',
268. 'ram' => '727473703A2F2F',
269. 'dmg' => '78',
270. 'lgc' => '7B0D0A6F20',
271. 'lgd' => '7B0D0A6F20',
272. 'pwi' => '7B5C707769',
273. 'rtf' => '7B5C72746631',
274. 'psp' => '7E424B00',
275. 'wab' => '9CCBCB8D1375D211',
276. 'wpf' => '81CDAB',
277. 'png' => '89504E470D0A1A0A',
278. 'aw' => '8A0109000000E108',
279. 'hap' => '91334846',
280. 'skr' => '9501',
281. 'gpg' => '99',
282. 'pkr' => '9901',
283. 'qdf' => 'AC9EBD8F0000',
284. 'pwl' => 'E3828596',
285. 'dcx' => 'B168DE3A',
286. 'tib' => 'B46E6844',
287. 'acs' => 'C3ABCDAB',
288. 'lbk' => 'C8007900',
289. 'class' => 'CAFEBABE',
290. 'dbx' => 'CFAD12FE',
291. 'dot' => 'D0CF11E0A1B11AE1',
292. 'pps' => 'D0CF11E0A1B11AE1',
293. 'ppt' => 'D0CF11E0A1B11AE1',
294. 'xla' => 'D0CF11E0A1B11AE1',
295. 'xls' => 'D0CF11E0A1B11AE1',
296. 'wiz' => 'D0CF11E0A1B11AE1',
297. 'ac_' => 'D0CF11E0A1B11AE1',
298. 'adp' => 'D0CF11E0A1B11AE1',
299. 'apr' => 'D0CF11E0A1B11AE1',
300. 'mtw' => 'D0CF11E0A1B11AE1',
301. 'opt' => 'D0CF11E0A1B11AE1',
302. 'pub' => 'D0CF11E0A1B11AE1',
303. 'rvt' => 'D0CF11E0A1B11AE1',
304. 'sou' => 'D0CF11E0A1B11AE1',
305. 'spo' => 'D0CF11E0A1B11AE1',
306. 'vsd' => 'D0CF11E0A1B11AE1',
307. 'wps' => 'D0CF11E0A1B11AE1',
308. 'ftr' => 'D20A0000',
309. 'arl' => 'D42A',
310. 'aut' => 'D42A',
311. 'wmf' => 'D7CDC69A',
312. 'efx' => 'DCFE',
313. 'one' => 'E4525C7B8CD8A74D',
314. 'rpm' => 'EDABEEDB',
315. 'gho' => 'FEEF',
316. 'ghs' => 'FEEF',
317. 'wp' => 'FF575043',
318. 'wpd' => 'FF575043',
319. 'wpg' => 'FF575043',
320. 'wpp' => 'FF575043',
321. 'wp5' => 'FF575043',
322. 'wp6' => 'FF575043',
323. 'jfif' => 'FFD8FF',
324. 'jpe' => 'FFD8FF',
325. 'jpeg' => 'FFD8FF',
326. 'jpg' => 'FFD8FF',
327. 'mof' => 'FFFE23006C006900',
328. 'ipa' => '504B03040A',
329. );
330. /**
331. * 检查文件类型
332. *
333. * @param string $filePath 文件路径
334. * @param string $fileExt 文件扩展名
335. *
336. * @return boolean
337. */
338. public static function validation($filePath, $fileExt)
339. {
340. // 文件格式未知
341. if (!isset(self::$_fileFormats[$fileExt]))
342. {
343. return false;
344. }
345. $length = strlen(self::$_fileFormats[$fileExt]);
346. $bin = self::_readFile($filePath, $length);
347. $fileHead = @unpack("H{$length}", $bin);
348. // 判断文件头
349. if (strtolower(self::$_fileFormats[$fileExt]) == $fileHead[1])
350. {
351. return true;
352. }
353. return false;
354. }
355. /**
356. * 读取文件内容
357. *
358. * @param string $filePath 文件路径
359. * @param integer $size
360. *
361. * @return string
362. */
363. private function _readFile($filePath, $size)
364. {
365. $file = fopen($filePath, "rb");
366. $bin = fread($file, $size);
367. fclose($file);
368. return $bin;
369. }
370. }
371. ?>

调用示例：

2. require './class_filetypevalidation.php';
3. // 文件路径
4. $filePath = "D:/test.png";
5. $x = FileTypeValidation::validation($filePath, 'zip');
6. var_dump($x);
7. ?>