PHP array in C++ ?

[S_M_A]

I think I missed some things here. What you want is probably more like this

#include <map>
#include <string>

struct Point
{
  int x;
  int y;
  int z;
};

std::map< std::string, Point > models;

int distance( const std::string& objName1, const std::string& objName2 )
{ 
  int x1 = models[objName1].x;
  int x2 = models[objName2].x;
  //Function that actually does something 
  return 0;
}

int main()
{
  models["object1"].x = 7831;
  models["object1"].y = 0;
  models["object1"].z = 0;
  models["object2"].x = 1893; 
  models["object2"].y = 0; 
  models["object2"].z = 0;

  int dist = distance( "object1", "object2" );
  return 0;
}

http://cplusplus.com/reference/string/string/
http://cplusplus.com/reference/stl/map/