Print string based on POST data value

Question

I am a beginner here so the question is maybe stupid, there is a POST data passed from a html form, and I want it to print some string based on that value, lets say

$_POST['veggie']

The data could be 1,2,3. and I want it to print "apple", "banana", "carrot". I have tried using JavaScript but it will not read POST data

 <script>
    whatVeggie(){
        if ($_POST['veggie'] == 1) {
            document.getElementById('myVeggie').innerHTML="apple";
        } else if ($_POST['veggie'] == 2){
            document.getElementById('myVeggie').innerHTML="banana";
        } else if $_POST['veggie'] == 3){
            document.getElementById('myVeggie').innerHTML="carrot";
          }
        }
 </script>

<body onload="whatVeggie();">
I like to eat<p id="myVeggie"></p>
</body>

Javascript is client side, POST or GET refers to server side requests. You need to get the value when its posted to the server and output it that way. — Master Yoda, Apr 26 '17 at 16:03
Try this? http://php.net/manual/en/language.types.array.php#example-56 — Hugh Chalmers, Apr 26 '17 at 16:12

Zakaria Acharki · Accepted Answer · 2017-04-26T16:36:41.150

0

No need for the JS here you could use simply the PHP code :

<?php 
    $id='default_id';
    $veggies = ["","apple","banana","carrot"];

    if ( isset($_POST['veggie']) ){
       $id = $veggies[$_POST['veggie']];
    }
?>

<body>
     I like to eat<p id="<?php echo $id; ?>"></p>
</body>

Hope this helps.

edited Apr 26 '17 at 16:36

answered Apr 26 '17 at 16:09

Zakaria Acharki

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You could also use arrays to make it more compact http://php.net/manual/en/language.types.array.php#example-56 :) – Hugh Chalmers Apr 26 '17 at 16:12
"apple", '2' => "banana", '3' => "carrot", ); echo $stores[$selStore]; ?> – user1058806 Apr 27 '17 at 01:17

Print string based on POST data value

1 Answers1