How to increase the value of a certain variable with buttons?

[natznetznitz]

..im working on basketball scoring simple program, i need three buttons that has the value of +1, +2, and +3, i want the score to continually increase as each button is clicked..but i always ending up with the value of 1,2,or three, on each button..


can anyone help..please?

switch ($_POST['basket']) {
 
    case '+1':
    if ($scoreinitial == 0) 
    {    
    $scoreone = $scoreinitial + 1;
    echo $scoreone;
    }
    else {
    $scoreone = $scoreone + 1;
    echo $scoreone;
    }
    break;
 
    case '+2':
    $scoreone = $scoreone + 2;
    echo $scoreone;
 
 
 
 
 
}
 

i use this switch case, but it always return the same values

[Bryan Cheung]

My magic boll says: "use += and not + when calculating".

Does this mean something to you?

[Bryan Cheung]

Try this:

switch ($_POST["basket"]) 
{
    case "+1":
        $scoreone++;
        print $scoreone;
    break;
    case "+2":
        $scoreone += 2;
        print $scoreone;
    break;
    default:
        print "Invalid value given.";
    break;    
}

[natznetznitz]

no change at all,if i press the +1 button '1' wil b dsplayd, the same wd +2,evn f i press button repeatdly.

[Bryan Cheung]

Show me all the code, there might be some logic error before this.

[HaLo2FrEeEk]

Most likely the score variable is being set somewhere at the beginning of the code, to a static value. If you want it to increase then you need to pass the current score as a GET or POST parameter, or store it in a session variable.

<?php
$score = 0;
switch($_POST['basket']) {
  case "+1":
    $score++;
    break;
  case "+2":
    $score += 2;
    break;
  case "+3":
    $score +=3;
    break;
  }
 
echo $score;
?>

No matter how many times you run this you're gonna get either 1, 2, or 3, depending on the value of the "basket" POST value.