How to POST variable in a loop?

Question

I want to post some inputs which are included in a loop. The problem is that when I click the sumbit button only the last value of the input is posted. Any suggestions?

while ($i <= $number) {
    echo '<label class="col-6 col-lg-4 col-form-label">Question ' . $i . '</label><br>
    <input class="col-6 col-lg-6  form-control" name="question" id="question" placeholder="Type your question" required/><br>
    <div class="form-group row">
        <label class="col-6 col-lg-4 col-form-label">Answer 1</label>
        <div class="col-6 col-lg-8 d-flex align-items-center">
            <input name="correct_answer"  type="text" placeholder="Correct answer goes here" required/>
        </div>
    </div>
    <div class="form-group row">
        <label class="col-6 col-lg-4 col-form-label">Answer 2</label>
        <div class="col-6 col-lg-8 d-flex align-items-center">
            <input name="wrong_answer" type="text" placeholder="Type a wrong answer" required/>
        </div>
    </div>
    <div class="form-group row">
        <label class="col-6 col-lg-4 col-form-label">Answer 3</label>
        <div class="col-6 col-lg-8 d-flex align-items-center">
            <input name="wrong_answer2" type="text" placeholder="Type a wrong answer" required/>
        </div>
    </div><hr>';

    $i++;

    if(isset($_POST['question'])) {
        $question = $_POST['question'];
        echo $question;
    }

}

score 0 · Answer 1 · answered Aug 02 '19 at 14:49

This is normal because you erase the name of each input ,and you will send only the last inputs un your loop to avoid this you can add [] as a suffix of each name in yours inputs or selects ... example:

 <input name="wrong_answer2[]" type="text" placeholder="Type a wrong answer" required/>

and for recuperate it, you must read it as a array, like this, i supose you use the method post in your form:

$wrong_answer2 = (array) $_POST['wrong_answer2'];

Have Fun :)

score 0 · Answer 2 · answered Aug 02 '19 at 14:51

The inputs have the same name. This means that if they are in the same form, the last one will overwrite the others. As a solution you could for example use the $i variable to make all the names unique.

Another solution could be to use arrays. POST an array from an HTML form without javascript describes the array solution.

How to POST variable in a loop?

2 Answers2