I have a question about passing a string from PHP to C++. I've been able to pass numbers successfully, but I'm running into issues with passing letters. Here's the PHP code that works:
<?php
$r = 5;
$s = 12;
$x = 3;
$y = 4;
$q = "Hello World";
$c_output = `project1.exe $r $s $x $y $q`;
echo "<pre>$c_output</pre>";
echo "Output from C++ program is: " . ($c_output + 1);
?>While this successfully sends variables r, s, x, y, and q to the project1.exe C++ program, there seems to be an issue specifically with the string variable $q.
This is the simple C++ code I have in my program:
#include <iostream>
#include <cstdlib>
#include <string>
using namespace std;
int main(int argc, char* argv[]) {
int val[2];
for(int i = 1; i < argc; i++) {
val[i-1] = atoi(argv[i]);
}
double r = val[0];
double s = val[1];
double x = val[2];
double y = val[3];
double q = val[4];
cout << r;
cout << s;
cout << x;
cout << y;
cout << q;
return 0;
}
Everything works fine except when the string "Hello world" assigned to $q is passed through. When I try to define val[4] as a string or character, the code doesn't compile. Can someone please explain how to handle this so that $q can be processed as a string? Just a heads up, I'm still new to programming (only 6 months in).