I'm learning SQL using Wampserver, Crimson editor, and [the New Boston tutorials](http://youtu.be/P0zWopVbW4k). Nothing worked until I change quotation marks:

With SQL commands, regular 'single quotes' don't work, but `weird slanty quotes` do.

When using forms and `$_GET["name"];` only double quotes will work.

Any idea what is going on here? I use a British keyboard, but so does the video tutor, and he uses `$_GET['name'];` with single quotes.

EDIT: sample code:

```
if(isset($_GET["sortBy"])&&!empty($_GET["sortBy"]) ) // only works with "full" quotes
{   $sortBy         = $_GET["sortBy"]; 
    echo "sortBy works <br><br>";
}
$topTenResult = "SELECT  `name`,`intuition`,`bravery`,`romance` FROM  `scores` ORDER BY $sortBy DESC"; 
// does not work with default keyboard single quotes

```