Rekenmachine

[code]<?php

if(empty($_POST["getal1"])){
		$geen_user1 = "Veld is leeg";
}else{
	if(is_numeric($_POST["getal1"])){

	}else{
       		$geen1 = "Geen Cijfer";
	}
}


print("<br/>");


if(empty($_POST["getal2"])){
		$geen_user2 = "Veld is leeg";
}else{
    if(is_numeric($_POST["getal2"])){
          
   }else{
       		$geen2 = "Geen Cijfer";
    }
}



?>

<form name="frm_rekenmachine" action="<?php print($_SERVER["PHP_SELF"]);?>" method="post">

	<input type="text" name="getal1" value="<?php print($_POST["getal1"]);?>"> <?php print("$geen1") ?><?php print("$geen_user1") ?><br>

	<select name="type">
  		<option value ="plus">+</option>
  		<option value ="min">-</option>
  		<option value ="delen">:</option>
  		<option value ="maal">x</option>
	</select>
<br>
	<input type="text" name="getal2" value="<?php print($_POST["getal2"]);?>"> <?php print("$geen2") ?><?php print("$geen_user2") ?>
<br>
	<input type="submit" name="sub_nogiet" value="Reken uit">
</form>

<?php
$getal1 = $_POST["getal1"];
$getal2 = $_POST["getal2"];


if($_POST["type"] == "plus"){
	$uitkomst = $getal1 + $getal2;
}else if($_POST["type"] == "min"){
	$uitkomst = $getal1 - $getal2;
}else if($_POST["type"] == "delen"){
	$uitkomst = $getal1 / $getal2;
}else if($_POST["type"] == "maal"){
	$uitkomst = $getal1 * $getal2;
}

print($getal1);?> 

<?php

if($_POST["type"] == "plus"){
	?>+<?php
}else if($_POST["type"] == "min"){
	?>-<?php
}else if($_POST["type"] == "delen"){
	?>:<?php
}else if($_POST["type"] == "maal"){
	?>x<?php
}

print($type2); ?> <?php print($getal2) ?> = <?php print("<b>$uitkomst</b>") ?>[/code]