I can't get multiple selected values of select box in php

Question

So, I have an HTML/PHP form that has a select list box from which you can select multiple values because its multiple properties are set to multiple. Consider the form metho

Answer 1

the code work just right for me:

/home/vagrant/foo/index.php:3:
array (size=2)
  'classe' => 
    array (size=2)
      0 => string '| adjective |' (length=13)
      1 => string '| adverb |' (length=10)
  'submitSave' => string 'Save' (length=4)

have some special config in PHP?

my test:

<?php

var_dump($_POST);

?>
<form method="POST">
     <div class="col-75">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/js/select2.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/css/select2.css" rel="stylesheet"/>
    <select id="classe" name="classe[]" multiple name="event_type[]" class="form-control" required>
  <option value="| adjective |">adjective</option>
  <option value="| adverb |">adverb</option>
  <option value="| noun |">noun</option>
  <option value="| verb |">verb</option>
</select>
<script type="text/javascript">
        var s2 = $("#classe").select2({
    placeholder: "Select",
    tags: true
});


    </script>
</div>
<div class="row">

            <td><input type="submit" value="Save" name="submitSave"></td>
    </div>  
</form>

edit:

when yo receive array data in PHP, in your case:

<select name="classes[]" >

the PHP var is $_POST['classes'] not $_POST['classes[]'] and it is an array, if you want to use it as an string you have to use implode