The interaction between C + + and PHP-----C + + asynchronously gets the text content of the Web page, asynchronously gets the echo value of PHP.

Reprint please declare the source!

Http://www.cnblogs.com/linguanh/category/633252.html

The distance from the last talk of C + + production JSON or other data to the server, two months after the lapse.

Links: http://www.cnblogs.com/linguanh/p/4340119.html

This time it is from the server to get text content to the console, or write local text, such as the operation, nonsense, say, start.

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Test server is: Sina Cloud Sea;

Test content: Get the data that is read from the server by PHP footstep, I am the user's OpenID here;

Tools: VS 2012;

First on the intuitive image, after the source code

General Examples

Core functions

For a description of the conversion functions of multibyte wchar to LPCSWTR, go to the link

Http://www.cnblogs.com/linguanh/p/4241939.html

1#include <iostream>2#include <fstream>3#include <Windows.h>4#include <wininet.h>5 #defineMaxblocksize 28+1//OpenID Fixed length6 #pragmaComment (lib, "Wininet.lib")//Introducing Dynamic Libraries7 8 Char* Getweixinfromusernamefromsea (Const Char*);9 using namespacestd;Ten  One intMain () { A     Char*p=null;//for storing returned results -P=getweixinfromusernamefromsea ("Http://913337456-my.stor.sinaapp.com/fun.txt"); -  thecout<<p; -     return 0 ;  - }  -   + //I set the function here with the return value, you can not apply the return value!  - Char* Getweixinfromusernamefromsea (Const Char*Url) { +     Char*str =New Char[Maxblocksize];//results for the last return, dynamically allocated A     Const Char*x="From_af";inti =0;//The first one is the open tag, and I is the following conversion control variable atWCHAR exchange_text_from_url[ the],exchange_text_from_x[ the]; -LPCWSTR py = Exchange_text_from_url;//intermediate variables for URL to LPCWSTR -LPCWSTR PZ = exchange_text_from_x;//Additional Information -     //Unicode encoding under Settings, I use a wide byte here, eliminating the hassle of conversion -MultiByteToWideChar (0,0, X,-1, Exchange_text_from_x, -);//WCHAR to LPCWSTR, conversion -MultiByteToWideChar (0,0, URL,-1, Exchange_text_from_url, the ); in     //End Conversion -Hinternet handle_for_init_internet = InternetOpen ("From_af", internet_open_type_direct, NULL, NULL,0); to      if(Handle_for_init_internet! =NULL) { +Hinternet Handle_for_read_info =InternetOpenUrl (handle_for_init_internet, URL, null,null,null,null); -          if(Handle_for_read_info! =NULL) { the              CharResult[maxblocksize];//The combination of data used to hold the buffer *              CharBuffer[maxblocksize];//buffer for downloading files $DWORD Bytes_read =1;//number of bytes downloadedPanax Notoginseng BOOL Temp_boolean; -               while(bytes_read!=0){  the                  //use InternetReadFile to read data from the buffer to the buffer string, the number of bytes is the effective length of buffer, the control is Bytes_read +Temp_boolean = InternetReadFile (Handle_for_read_info,buffer,sizeof(buffer), &bytes_read);  A              } the               for(i;i<maxblocksize-1; i++){ +                  if(i==maxblocksize-2&& buffer[i]=='0'){//remove the last interference value 0 -  $}Else if(buffer[i]>= the&& buffer[i]<=126){//A variety of tests, the end of the use of ASCII code range judgment to solve the hot stamping ~ ~ ~ $                     //cout<<buffer[i];//eliminates the additional promiscuous space of a buffer by using a loop to output a single character specifically -                     //here is not directly out of buffer because, there are a lot of buffer in the data in the output will become a lot of hot, usually empty will be hot -Result[i]=buffer[i];//after testing, this one-on-each assignment can remove the inclusions in the hot ~ ~ ~ the                  } -              } Wuyiresult[i]=' /';//end of assignment to prevent self-scalding thestrcpy (Str,result);//Copy to a string pointer to return -              //safe operation, destroying handle WuInternetCloseHandle (Handle_for_read_info); Handle_for_read_info =NULL; -          } AboutInternetCloseHandle (handle_for_init_internet); Handle_for_init_internet =NULL; $          returnstr; -     }  -}

The interaction between C + + and PHP-----C + + asynchronously gets the text content of the Web page, asynchronously gets the echo value of PHP.