Question

When I simply print the query I get:

one=1&two=2&three=3&four=3&five=3&six=3

Still not working!!!! I am about to go nuts.

#include <stdio.h>
#include <stdlib.h>

int main(void){

    char *data;
    float prices[] = {1, 2, 3, 4, 5, 6};
    int a, b, c, d, e, f;

    printf("%s%c%c\n",
    "Content-Type:text/html;charset=iso-8859-1",13,10);

    printf("<title>Bill</title>\n");
    printf("<h3 align=center >Bill</h3>\n");

    data = getenv("QUERY_STRING");

    if(data == NULL){
            printf("<p>Error!</p>");
    } else {
    printf("%s", data);
    sscanf(data, "one=%d&two=%d&three=%d&four=%d&five=%d&six=%d", &a, &b, &c, &d, &e,       &f);
    }

return 0;

}

Answer 1

An easy way to parse this string is using sscanf. For this example:

one=2&two=1

you could use:

int one, two;
sscanf(data, "one=%d&two=%d", &one, &two);

More information about sscanf here: http://www.cplusplus.com/reference/clibrary/cstdio/sscanf/