HttpQueryInfo报错

[jhldelphi]

file1.php

    $file = "D:\\ReadFileTo.txt";
    $handle = fopen($file, 'r');
    $sContent = '';
    while(false != ($a = fread($handle, 8080))){//返回false表示已经读取到文件末尾
        $sContent .= $a;
    }
    
    fclose($handle);
    echo "$sContent";

vc(输出file1.php):

#include "stdafx.h"
#include <stdio.h>
#include <stdlib.h>
#include<windows.h>  
#include<wininet.h>  
#include<iostream.h>  
#pragma comment(lib,"wininet.lib")  

#define DATA_CACHE_SIZE 1024*10
int main(int argc, char* argv[])
{
	printf("Hello World!\n");

	int i = 0;
	char pulr[] = "file1.php";
	HINTERNET hinternet=::InternetOpen(
				 "http generic",
				 INTERNET_OPEN_TYPE_PRECONFIG,
				 NULL,	
				 NULL,
				 0);
	if (!hinternet)
	{
		printf("InternetOpen\n");
		system("pause");
		return 0;
	}

	i = 1;
	HINTERNET hconnect= ::InternetConnect(
					      hinternet,
					      "144.20.80.27",
					      8080,
					      NULL,								//lpszUsername
					      NULL,								//lpszPassword
					      INTERNET_SERVICE_HTTP,
					      0,								//dwFlags
					      0									//dwContext
					      );
	if (!hconnect)
	{
		printf("InternetConnect\n");
		system("pause");
		return 0;
	}		

	HINTERNET hHttpOpenRequest=::HttpOpenRequest(
						hconnect,
						"POST",
						pulr,
						"HTTP/1.1",
						NULL,
						0,
						INTERNET_FLAG_RELOAD,
						0
			);
	if (!hHttpOpenRequest)
	{
		printf("HttpOpenRequest\n");
		system("pause");
		return 0;
	}

	char psHeader[] = "Content-Type: application/x-www-form-urlencoded \n\r";
	if (!(HttpAddRequestHeaders(
	    hHttpOpenRequest, 
	    psHeader, 
	    strlen(psHeader), 
	    HTTP_ADDREQ_FLAG_REPLACE|HTTP_ADDREQ_FLAG_ADD
	    )) )
	{
		printf("HttpAddRequestHeaders\n");
		system("pause");
		return 0;
	}

	char *strRet=""; //"Yjr|fc|zf|cym|wjf||role1|role2|role3|role4";
	char pstrContent[] = "UserName=admin&Password=-1";
	if (! (HttpSendRequest(
	    hHttpOpenRequest,
	    NULL,
	    0,
	    (LPVOID)(LPCSTR)pstrContent,
	    strlen(pstrContent)
					)) )
	{
		printf("HttpSendRequest\n");
		system("pause");
		return 0;
	}

	// Get the length of the file.			
	DWORD dwFileSize=0;
	DWORD dwLengthBufQuery = sizeof(dwFileSize);
	DWORD dwIndex=0;
	
	BOOL bQuery = ::HttpQueryInfo(hHttpOpenRequest,
		HTTP_QUERY_CONTENT_LENGTH
		|HTTP_QUERY_FLAG_NUMBER, 
		(LPVOID)&dwFileSize/*bufQuery*/, 
		&dwLengthBufQuery,
		&dwIndex) ;
	if (!bQuery)
	{
		printf("HttpQueryInfo\n");
		system("pause");
		return 0;
	}


	// Allocate a buffer for the file.   
	char* buffer = new char[dwFileSize+1] ;
		
	//由于不允许HTTP写缓存，所以无需循环调用InternetReadFile
	DWORD dwLength=0;
	DWORD dwLengthOne=1;
	BOOL bRead=TRUE;
	char bufferOne[DATA_CACHE_SIZE+10];

	strcpy(buffer,"");
	while (bRead && dwLengthOne>0)
	{
		strcpy(bufferOne,"");
		if (InternetReadFile(
				hHttpOpenRequest,
				bufferOne,
				DATA_CACHE_SIZE+1,
				&dwLengthOne
				)
			) 
		{
			if (dwLengthOne>0)
			{
				memcpy(&buffer[dwLength],bufferOne,dwLengthOne);
				dwLength+=dwLengthOne;

				//接收数据包的大小和与总数据包大小比较
				if (dwLength > dwFileSize)
				{
					printf("while\n");
					system("pause");
					return 0;
				}

				buffer[dwLength]='\0';
			}
		}
	}
	buffer[dwLength]='\0';

	//to widerchar
	DWORD dwSize = MultiByteToWideChar (CP_ACP, 0, buffer, -1, NULL, 0);
  	WCHAR *wchr = new WCHAR [dwSize];
	::MultiByteToWideChar(CP_ACP,MB_ERR_INVALID_CHARS,buffer,-1,
				 wchr,dwSize);
	printf(buffer);
//	wprintf(wchr);
	delete [] wchr;
	delete [] buffer;
	
	
	::InternetCloseHandle(hHttpOpenRequest);hHttpOpenRequest=NULL;

	::InternetCloseHandle(hconnect);hconnect=NULL;
	::InternetCloseHandle(hinternet);hinternet=NULL;

	printf("\n");
	system("pause");
	return 0;
}

问题：
1、环境windows xp + php5 + apache2.2 + vc6.0。
2、当file1.php读取的文件大于8000kb时，输出就会失败。

[笨笨兔兔兔兔兔]

fread() 从文件指针 file 读取最多 length 个字节。该函数在读取完最多 length 个字节数，或到达 EOF 的时候，或（对于网络流）当一个包可用时，或（在打开用户空间流之后）已读取了 8192个字节时就会停止读取文件，视乎先碰到哪种情况。
返回所读取的字符串，如果出错返回 false。

[jhldelphi]

不明了，怎么解决呢

[笨笨兔兔兔兔兔]

[Quote=引用 2 楼 的回复:]

不明了，怎么解决呢
[/Quote]

改用其他的php函数