Web and Mobile Apps Dev

When I was doing my practice final for the PHP class today, I came across several problems for easier way to populate the form, especially with check box and option form controls. These two controls need to be repeated each time when new items were added to the list. Of course I could copy and paste the previous statement and edit it accordingly, but I want to make it easier by just input the new items into the appropriate arrays. Here is what I did to the multiple selection control:

<select multiple size="5" name="skills[]" id="Skills">
    <?php
        $selected = new prefilll();
        $webprogramming = array("AJAX","ColdFusion","HTML 5","JavaScript","JSP","PHP");
        $computerprogramming = array("Basic","C/C++","Java","Linux");
        $skillset = array("Web Programming"=>$webprogramming,"Computer Programming"=>$computerprogramming);
        foreach($skillset as $skillNum=>$skillsets) {
            echo "<optgroup label="$skillNum">n";
            foreach($skillsets as $programmingSkill) {
                echo "<option";
                echo $selected->selected("skills",$programmingSkill);
                echo " value="$programmingSkill">{$programmingSkill}</option>n";
            }
            echo "</optgroup>n";
        }
    ?>
</select>

And here is the check box control:

<?php
     $counter = 0;
     $checked = new prefilll();
     $jobtypes = array("full"=>"Full Time","part"=>"Part Time","weekdays"=>"Weekdays","weekends"=>"Weekends");
     foreach($jobtypes as $labelFor=>$values) {
         $counter++;
         echo "<input type='checkbox' name='jobtypes[]' value='{$values}' id='{$labelFor}'" . $checked->checked("jobtypes", $values) . " />n";
         echo "<label for='{$labelFor}'>{$values}</label>n";
         if ($counter == sizeof($jobtypes) / 2) {
             echo "<br />n";
         }
     }
?>

Note that I used a class in the above code segments, prefill. This class is used to reselect the items in the check box and option controls if there is a validation error.

Following is the code for the prefill class:

class prefilll{
    function selected($items,$Item) {
        if (isset($_POST[$items])) {
            $items = $_POST[$items];
            if (in_array($Item, $items)) {
                    $Selected = " selected";
                }
            else {
                $Selected = "";
            }
        }
        else {
            $Selected = "";
        }
        return $Selected;
    }
 function checked($items,$Item) {
        if (isset($_POST[$items])) {
            $items = $_POST[$items];
            if (in_array($Item, $items)) {
                    $checked = " checked";
                }
            else {
                $checked = "";
            }
        }
        else {
            $checked = "";
        }
        return $checked;
    }
}

You can download the above source code from here along with the whole source file if you want to experiment with it yourself.