Passing cmd line variables from a php file

Is this possible from a PHP file

$var1 = 1  
$var2 = 2  
$output = `./a.out $var1 $var2 `

or

$output = exec(./a.out $var1 $var2);

consider a.out to be the C program executable.

Where $var1 and $var2 are passed as command line arguements? If this is not possible, is there any other easier way of passing php variables as input to my C program executable?

Tha开发者_Python百科nks!

Yes, that is possible.

Since you are asking for potential alternatives, you could consider passing the arguments as environment variables instead (which might be insignificantly easier to access in your C binary):

exec("VAR1='$var1' VAR2='$var2' ./a.out");

Sure, it would work. The syntax however is little different:

$output = exec("./a.out $var1 $var2");

Php would put the actual values into the string, so a.out would execute with arguments 1 2.