<?php
if($_SERVER['REQUEST_METHOD'] == 'POST')
{
 
    echo "<h2>Answers for participants</h2>";
    for($index=0;$index < count($_POST['participant']); $index++) {
        echo "<p>{$_POST['participant'][$index]['name']} {$_POST['participant'][$index]['surname']}</p>";
        for($qindex=0;$qindex < count($_POST['participant'][$index]['questions']); $qindex++) {
 
            $id = $_POST['participant'][$index]['questions'][$qindex];
            foreach($id['question_id'] as $key => $question) {
                echo "<p>Question ID: $key answer {$question['answer']}</p>";
            }
        }
    }
}
 
?>
<form method="post">
 
    <h6>Participant - 1 - general</h6>
 
    <div class="form-group font-size-sm">
        <label for="namegeneral_1"
               class="text-gray">Name</label>
        <input type="text" required id="namegeneral_1"
               name="participant[0][name]"
               class="form-control" value="Jerry">
    </div>
    <div class="form-group font-size-sm">
        <label for="surnamegeneral_1"
               class="text-gray">Surname</label>
        <input type="text" required id="surnamegeneral_1"
               class="form-control"
               name="participant[0][surname]" value="Bostick">
    </div>
 
    <div class="form-group">
        <label for="participant_question">Phone</label>
 
        <input type='phone' name='participant[0][questions][][question_id][1][answer]' class='form-control' value="909-188-7522" >
        <!-- Pretend additional question for meal -->
        <input type='text' name='participant[0][questions][][question_id][5][answer]' class='form-control' value="Steak" >
    </div>
 
    <input type="hidden" name="participant[1][rtypes]" value="1"/>
 
    <h6>Participant - 2 - general</h6>
    <div class="form-group font-size-sm">
        <label for="namegeneral_2"
               class="text-gray">Name</label>
        <input type="text" required id="namegeneral_2"
               name="participant[1][name]"
               class="form-control" value="Tammy">
    </div>
    <div class="form-group font-size-sm">
        <label for="surnamegeneral_2"
               class="text-gray">Surname</label>
        <input type="text" required id="surnamegeneral_2"
               class="form-control"
               name="participant[1][surname]" value="Wallace">
    </div>
 
    <div class="form-group">
        <label for="participant_question">Phone</label>
        <input type='phone' name='participant[1][questions][][question_id][1][answer]' class='form-control' value="909-872-1232" >
        <!-- Pretend additional question for meal -->
        <input type='phone' name='participant[1][questions][][question_id][5][answer]' class='form-control' value="Chicken" >
        <input type="hidden"
               name="participant_question_required[]"
               value="1">
        <input type="hidden"
               value="1"
               name="participant[1][][question_id]"/>
    </div>
 
 
 
    <input type="hidden" name="participant[2][rtypes]" value="1"/>
 
    <input type="submit" class="btn btn-primary" value="Register"/>
</form>
 

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