Getting Started with PHP 5 C + + and PHP binary transfer

C + + needs to implement the PHP side:

Bin2Hex

function, PHP is called by this type of string:

Pack

Translates to 2 of binary data that PHP can recognize.

C + + needs to do is to implement a bin2hex, in fact, the C + + read 2 binary data as a byte array, each bit into a 16 binary string. The use of sprintf in QT cannot limit the 2-bit length, so after sprintf, the length is 8 to intercept the last 3 strings, including the/0 terminator

QString Bin2Hex (char* data1,intLen) {QStrings; QString R; for(intx=0;x
  
   
     x + +)        
 {
     s . 
     sprintf  (
     "%02x  +" , data1[
     x ]); 
     if 
 (
     s . 
     length  () > 
     2 ) {
     s  = 
     s . Mid (        
     6 , 
     8 );    } r.append (
     s ); } 
     return  R;    
 Qvariant qmlclass::readimg (QString file) {QFile mfile (file); 
     if 
 (!mfile. 
     Open     (qiodevice::readonly))        
 {qdebug () << 
     "file does not exist" ;
 
     return     
     "" ;    } qdebug () << 
     "file exists" ;    Qbytearray ar = Mfile.readall ();    char * ADR =ar.data ();     
 QString 
     m  = Bin2Hex (Adr,ar.size ());
 
     return 

     m ;} 
   
  

   function   uploadimg   ()  {  var  x =  New  XMLHttpRequest (); X.onreadystatechange =   function   ()  {  if  (x.readystate = =  4 ) { if  (x.status = =  + ) {Console.log () the server R Eplied with: " + x.responsetext); Txt.text = X.responsetext; } } };  var  xxx =  new   Object ;  var  d=myapp.readimg ( ":/1.jpg" ); Console.log ( typeof  D) x.open ( "POST" ,  "http://localhost/mycode/Test/reg.php" ,  true ); Console.log (d) //post request to set the request header  X.setrequestheader ( "Content-type" ,  "Applicat Ion/x-www-form-urlencoded "); X.send (d); }

    
     $filename="teststream.jpg";//要生成的图片名字 $data_buff=file_get_contents("php://input");   echo$data_buff;  $jpg = pack("H*",$data_buff);//得到post过来的二进制原始数据 $file = fopen("pic/".$filename,"wb");//打开文件准备写入  fwrite($file,$jpg);//写入  fclose($file);//关闭?>

'). addclass (' pre-numbering '). Hide (); $ (this). addclass (' has-numbering '). Parent (). append ($numbering); for (i = 1; i <= lines; i++) {$numbering. Append ($ ('

'). Text (i)); }; $numbering. FadeIn (1700); }); });

The above describes the introduction of PHP 5 C + + and PHP binary transmission, including the aspects of the content, I hope to be interested in PHP tutorial friends helpful.

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