Programme C en Php

Struct_myHqData.myAddValidFlag.bMileage = true;

try
{
char szMileage[9];
memset(szMileage,0,sizeof(szMileage));
for(int i=0;i<8;i++)
{
szMileage[i] = strText[i] - 0x30;

}

struct _tagmileage
{
DWORD d0:4;
DWORD d1:4;
DWORD d2:4;
DWORD d3:4;
DWORD d4:4;
DWORD d5:4;
DWORD d6:4;
DWORD d7:4; 
}mytagMilage;

mytagMilage.d0 = szMileage[7];
mytagMilage.d1 = szMileage[6];
mytagMilage.d2 = szMileage[5];
mytagMilage.d3 = szMileage[4];
mytagMilage.d4 = szMileage[3];
mytagMilage.d5 = szMileage[2];
mytagMilage.d6 = szMileage[1];
mytagMilage.d7 = szMileage[0];

memcpy(&Struct_myHqData.nMilage,&mytagMilage,4); 
}
catch (...)
{
Struct_myHqData.myAddValidFlag.bMileage = false;
}
Struct_myHqData.nMilage = (Struct_myHqData.nMilage /1800.0) *1.852;