Re: Calculator beginner issue

Hi Erwin, Sent from my iPhone > On May 8, 2016, at 2:22 PM, Erwin Noever <erwin209@gmail.com> wrote: > > Hello guys, > > I am sorry to disturb you. > > I followed a tutorial and i am a newbe to php but want to learn. > > My calculator doesn't work, i dont see what is wrong. > Please can someone explain what the issue is or give me a hint. > Thank you in advance. > Html Code: > > <form method="post" action="calc.php"> > <input type="text" name="nummer1" placeholder="nummer1" > /> > <label for="kies">kies</label> > <select name="reken" id="kies"> > <option>selecteer</option> > <option value ="plus">+</option> > <option value ="min">-</option> > <option value ="delen">÷</option> > <option value ="maal">x</option> > </select> > <input type="number" name="nummer2" placeholder="nummer2" > /> > <input type="submit" value="calculeer" /> > > </form> > > php code: > > function bereken () > { > $nummer1 = $_POST['nummer1']; > $nummer2 = $_POST['nummer2']; > > switch ($_POST['reken']) > { > case "plus": > $plus = $nummer1 + $nummer2; > return $plus; > break; > > case "min": > $min = $nummer1 - $nummer2; > return $min; > break; > > case "delen": > $deel = $nummer1 / $nummer2; > return $deel; > break; > > case "maal": > $maal = $nummer1 * $nummer2; > return $maal; > break; > default: > echo "bereken op een andere maniet"; > } > } > > echo "het resultaat is :". bereken(); > > ?> > <br> > <a href="index.html">terug</a> I would throw in a few echos on the variables to make sure it's what you're expecting. <?php Echo "bummer 1: " . $nummer 1; ?> That way you can validate that you at least have the right info. And also sanitize your input :) Thanks!