Download the autohome forum post for offline browsing (PHP version)

I posted a post titled sending an original tool and downloading the autohome forum post for offline browsing, written in C # winform. Now I have a PHP version.

The analysis process is the same as the previous post, but PHPCodeTo achieve this,I added comments to the key points.

 1 <? PHP  2   Set_time_limit (0 );// Prevent timeout  3   /* Longware@gmail.com */  4   Function Gethttpcontentbysock ( $ URL ,$ Referer = "" ){// Obtain the HTTP request content, including HTML and binary images.  5       $ Info = Parse_url ( $ URL  );  6       $ Referer = Empty ( $ Referer )? $ URL : $ Referer  ; 7       $ Contents ='' ;  8   9       $ Fp = Fsockopen ( $ Info ['Host'], 80, $ Errno , $ Errstr , 30 );  10       If (! $ Fp  ){ 11           Echo " $ Errstr ( $ Errno ) <Br/> \ n" ;  12 } Else  {  13           $ Out = "Get $ URL HTTP/1.1 \ r \ n" ;  14           $ Out . = "Host :". $ Info ['Host']. "\ r \ n" ;  15           $ Out . = "Connection: keep-alive \ r \ n" ;  16           $ Out . = "User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0) \ r \ n" ;  17           $ Out . = "Accept: */* \ r \ n" ;  18           $ Out . = "Referer: $ Referer \ R \ n";// This cannot be less  19           $ Out . = "Accept-language: ZH-CN, ZH; q = 0.8 \ r \ n" ;  20           $ Out . = "Accept-charset: GBK, UTF-8; q = 0.7, *; q = 0.3 \ r \ n" ;  21   22           Fwrite ( $ Fp , $ Out  );  23  24           $ Line = 1; $ Flag = False  ;  25           While (! Feof ( $ Fp  )){  26               $ TMP = Fgets ( $ Fp , 2048 );  27              If ( $ Line > 1 ){  28                   If ( $ Flag  ){  29                       $ Contents . = $ TMP  ;  30 } Else  {  31                       If (Strlen ( Trim ( $ TMP ) <1 ){// Remove the HTTP Response Header text  32                           $ Flag = True  ;  33   }  34   }  35   }  36              $ Line ++ ;  37   }  38           Fclose ( $ Fp  );  39   }  40   41       Return   $ Contents  ;  42   } 43   44   /* By longware */  45   Function Writecontent ( $ URL , $ Page  ){// Write an object  46       $ Html = Gethttpcontentbysock ( $ URL , $ URL  );  47   48      $ Pattern = "/Src9 = \" http: \/[a-zA-Z0-9 _ \. \/] + \"/" ;// RegEx matches the image URL  49       Preg_match_all ( $ Pattern , $ Html , $ Matches , Preg_pattern_order );  50       //  Print_r ($ matches );  51   52       $ Search = Array ('"', 'Src9 =' );  53       Foreach ( $ Matches   As   $ Matche_array  ){// Obtain the real image URL  54           Foreach ( $ Matche_array   As   $ Matche_line  ){  55              $ Imgurl = Str_replace ( $ Search ,'', $ Matche_line  );  56               $ Path_info = Explode ("//", $ Imgurl  );  57               $ Dir = "./". Dirname ( $ Path_info [1]). "/";// Create a directory based on the URL  58               If (! Is_dir ( $ Dir  )){  59                   Mkdir ( $ Dir , 0777, True  );  60   }  61               $ Filename = "./".$ Path_info [1 ];  62               File_put_contents ( $ Filename , Gethttpcontentbysock ( $ Imgurl , $ URL  ));// Get the image and write the file  63               Echo   $ Filename . "<Br> \ r \ n" ;  64   } 65   }  66   67       //  Replace href  Replace useless code  68       $ Html = Str_replace ('Src = "http://x.autoimg.cn/club/lazyload.png" src9 = "', 'src = "', $ Html  );  69       $ Html = Str_replace ('HTTP ://','./', $ Html  );  70       $ Html = Str_replace ('Onload = ', 'x1 = ', $ Html  );  71       $ Html = Str_replace ('Onerror = ', 'x2 = ', $ Html  );  72       $ Html = Str_replace ('<Script',' <a style = "display: none "', $ Html  );  73       $ Html = Str_replace ('</Script',' </', $ Html  );  74   75       $ Filename = "./Threadowner-o-200042-19582947 -". $ Page . ". Html "; //  Threadowner-o-200042-19582947-2.html Write a local HTML file  76       File_put_contents ( $ Filename , $ Html  );  77       Echo   $ Filename . "------------------------------------------ <Br> \ r \ n" ;  78   }  79   /* By longware */  80  //  Main  81   If ( Empty ( $ _ Server ['Argv'] [1]) | Empty ( $ _ Server ['Argv'] [2]) { Die ('Input ARGs' );}  82   $ URL = "Http://club.autohome.com.cn/bbs/threadowner-o-200042-19582947-#.html" ;// Main Post URL rule 83   $ Min = $ _ Server ['Argv'] [1 ];// Download the start page  84   $ Max = $ _ Server ['Argv'] [2 ];// Download the end page  85   //  Print_r ($ _ server ['argv']);  86   For ($ I = $ Min ; $ I <= $ Max ; $ I ++ ){  87 Writecontent ( Str_replace ('#', $ I , $ URL ), $ I  );  88   }  89  /* By longware */  90 ?>

Save the preceding codeBBS. phpAnd then createDown. cmdFile, the content is as follows

 
D: \ webserver \ PHP \ php.exe D: \ wwwroot \ autohome \ bbs. php1 100
 

Double-clickDown. CMD file, Let him download it slowly.

If you want to access$ MinAnd$ MaxChange$ _ Request ['Min']And$ _ Request ['Max']After allCMDThe method is a little faster than the browser.

However, PHP is much less efficient than winform, because PHP does not have a ready-made multi-thread.