Question

I want to make my own function which performs in a similar manner to the following actual code.. ie

if(mysql_num_rows($res) == FALSE) {

  // DO SOMETHING BECAUSE THERE ARE NO RESULTS

}

In my code, i’m repeating an SQL statement a few times around the place, and if there are results, then I go ahead and do stuff.

What I’d like to do is create my own FALSE return in my own function ie

if(my_special_function($variable) == FALSE) {

    // DO STUFF

}

Is this as simple as in my special function having something like…

function my_special_function($variable) {

   $sql = 'SELECT field FROM table WHERE something=$variable';
   $res = mysql_query($sql);

   if(mysql_num_rows($res) == FALSE) {

     return FALSE;

   } else {

     return TRUE;

   }
}

?

Answer 1

You can make your special function even simpler:

function my_special_function($variable)
{
   $sql = "SELECT field FROM table WHERE something='{$variable}'";
   $res = mysql_query($sql);
   return mysql_num_rows($res) > 0;
}