beginner errors issue for me

[divinedesigns1]

ok so i started off with a radio button well two radio buttons to be exact, and i keep on having this issue but i check to make sure i didnt misspelled anything and so on but i still getting this same problem, also when i click on the one of the radio buttons it works

 

heres the error

Notice: Undefined index: position in D:\wamp\www\Website\admin\testing.php on line 65

and this is the code for the above issue

if(isset($_POST['submit'])){
                        // define the variables
                        $Title = $_POST['title'];
                        $Detail = $_POST['description'];
                        $Position = $_POST['position'];
                        echo $Position;
                        // define the error too
                        $errors = array();
                        // now sanitized please
                        $Title = strip_tags(trim($Title));
                        $Detail = strip_tags(trim($Detail));
                        $Title = preg_match("/^[a-zA-Z0-9]*$/", $Title);
                        $Detail = preg_match("/^[a-zA-Z0-9]*$/", $Detail);
                        // now lets see if its empty
                        if(empty($Title) && empty($Detail) && empty($Position)){
                            $errors[] = 'All Fields Are Required';
                        }
                        foreach($errors as $error){
                            echo $error;
                        }
                    }
                     echo '<form action="testing.php" method="POST" enctype="multipart/form-data">
                             <input type="text" name="title" value="">
                             <textarea name="description" col="8" row="24"></textarea>
                             <input type="radio" name="position" value="a">Main Position
                             <input type="radio" name="position" value="b">Second Position
                             <input type="submit" name="submit" value="Save">
                             </form>';

any tip or advice on this one?

[dsonesuk]

If none of the radio buttons is selected, and therefore it is not set, by referencing of 'position' index which is not set and therefore does not exist will throw a error.

 

Check if set using isset(), before referencing.

[divinedesigns1]

If none of the radio buttons is selected, and therefore it is not set, by referencing of 'position' index which is not set and therefore does not exist will throw a error.

 

Check if set using isset(), before referencing.

ok thanks