How to parse Baidu search result link? Url = parameter

How to parse Baidu search result link? Url parameters

Query Baidu link? Ulr = real link form /* Getrealurl: get the URL address after 301 and 302 redirection by enenba.com @ Param str $ url query $ Return str: specifies the actual url of the targeted url. */ Function getrealurl ($ url ){ $ Header = get_headers ($ url, 1 ); If (strpos ($ header [0], '000000') | strpos ($ header [0], '000000 ')){ If (is_array ($ header ['location']) { Return $ header ['location'] [count ($ header ['location'])-1]; } Else { Return $ header ['location']; } } Else { Return $ url; } } $ Input =''; $ Url = isset ($ _ GET ['URL'])? $ _ GET ['URL']: ''; If (empty ($ url) exit ($ input ); $ Urlreal = getrealurl ($ url ); Echo 'actual url: '. $ urlreal; $ Urlreal = ltrim ($ urlreal, 'http ://'); $ Search = '/ebac5573358cc3c0659257bfcf54 ([0-9a-f] +)/I '; Preg_match ($ search, $ url, $ r ); $ Url_encode = $ r [1]; unset ($ r ); Echo' Ciphertext: '. $ url_encode .' '; $ Urlreal_arr = str_split ($ urlreal ); $ Url_encode_arr = str_split ($ url_encode, 2 ); Echo' '; Echo $ input; ?> Statement: The articles on cnbeta are not published by me. My analysis is only based on my own ideas. I just want to find a process. As for whether there are any results, I have my own conclusions. After carefully reading the long code of the Baidu result url, we found that only numbers and letters a to f in the password, that is, hexadecimal code. The hexadecimal format is from 0 to> 1-> 2-> 3-> 4-> 5-> 7-> 8-> 9-> a-> B-> c-> d-> e-> f I collected a series of URLs and counted the first code. Ebac5573358cc3c0659257bfcf54XX ...... the url corresponding to this code is 33 0 23 @ 13 P 03 '73 p 63! 32 1 22 A 12 Q 02 a 72 q 62 "31 2 21 B 11 R 01 B 71 r 61 #30 3 20 C 10 S 00 c 70 s 60 $37 4 27 D 17 T 07 d 77 t 67% 36 5 26 E 16 U 06 e 76 u 66 & 35 6 25 F 15 V 05 f 75 v 65 '34 7 24G 14 W 04g 74 w 64 (3b 8 2b H 1b X 0b h 7b x 6b) 3a 9 2a I 1a Y 0a I 7a y 6a * 39: 29 J 19 Z 09 j 79 z 69 + 38; 28 K 18 [08 k 78 {68, 3f <2f L 1f \ 0f l 7f | 6f-3e = 2e M 1e] 0e m 7e} 6e. 3d> 2d N 1d ^ 0d n 7d ~ 6d/3c? 2c O 1c _ 0c o 7c 6c It should be a character in the ascii code table, but the order should be confused. However, this is the case in a single hexadecimal system: 3-> 2-> 1-> 0-> 7-> 6-> 5-> 4-> B-> a-> 9-> 8-> f-> e -> d-> c, four digits in one descending order, we can see that the total number is decreasing. But it is puzzled that the numbers from _ to 'are adjacent to the 0c and 73 in ascii. No way. I can't see the rule. let's look at the second-digit code ebac5573358cc3c0659257bfcf54XXYY .... The url corresponding to the YY code is 70 0 60 @ 50 P 40 '30 p 20! 71 1 61 A 51 Q 41 a 31 q 21 "72 2 62 B 52 R 42 B 32 r 22 #73 3 63 C 53 S 43 c 33 s 23 $74 4 64 D 54 T 44 d 34 t 24% 75 5 65 E 55 U 45 e 35 u 25 & 76 6 66 F 56 V 46 f 36 v 26 '77 7 67G 57 W 47g 37 w 27 (78 8 68 H 58X48 h 38x28) 79 9 69 I 59 Y 49 I 39 y 29 * 7a: 6a J 5a Z 4a j 3a z 2a + 7b; 6b K 5b [4b k 3b {2b, 7c <6c L 5c \ 4c l 3c | 2c-7d = 6d M 5d] 4d m 3d} 2d. 7e> 6e N 5e ^ 4e n 3e ~ 2e/7f? 6f O 5f _ 4f o 3f 2f The secret of the second digit follows the ascending hexadecimal order. 0-> 1-> 2-> 3-> 4-> 5-> 7-> 8-> 9-> a-> B-> c-> d-> e -> f indicates a descending total. Look at the third group of ebac5573358cc3c0659257bfcf54XXYYZZ .... The url corresponding to the ZZ code is 84 0 94 @ a4 P b4 'C4 p d4! 85 1 95 A a5 Q b5 a c5 q d5 "86 2 96 B a6 R b6 B c6 r d6 #87 3 97 C a7 S b7 c c7 s d7 $80 4 90 D a0 T b0 d c0 t d0 % 81 5 91 E a1 U b1 e c1 u d1 & 82 6 92 F a2 V b2 f c2 v d2 '83 7 93G a3 W b3 g c3 w d3 (8c 8 9c H ac X bc h cc x dc) 8b 9 9b I AB Y bb I cd y dd * 8e: 9e J AE Z be j ce z de + 8f; 9f K af [bf k cf {df, 88 <98 L a8 \ b8 l c8 | d8-89 = 99 M a9] b9 m c9} d9. 8a> 9a N aa ^ ba n ca ~ Da/8b? 9b O AB _ bb o cb db The order above is not explained: 4-> 5-> 6-> 7-> 0-> 1-> 2-> 3-> 4-> c-> B-> e-> f-> 8 -> 9-> a-> B, the total number of digits after the increment is not viewed yet, however, we can probably know that it is a group of four obfuscation hexadecimal obfuscation, so it increases or decreases, and a certain amount of data is required to judge. The next time you collect 1000 pieces of url data for determination.