如何从表单字段数组中检索数据

I want to retrieve data from array of form fields , how do I do it

View:

 <li class="checkbox"><input type="checkbox" value="yes" name="options[ac]" id="ac"> <label for="ac">Air Conditioning</label></li>
    <li class="checkbox"><input type="checkbox" value="yes" name="options[parking]" id="car"> <label for="car">Car Parking</label></li>
    <li class="checkbox"><input type="checkbox" value="yes" name="options[cards]" id="card"> <label for="card">Credit & Debit Card</label></li>
    <li class="checkbox"><input type="checkbox" value="yes" name="options[tv]" id="tv"> <label for="tv">TV</label></li>
    <li class="checkbox"><input type="checkbox" value="yes" name="options[wifi]" id="wifi"> <label for="wifi">Wi-Fi</label></li>
    <li class="checkbox"><input type="checkbox" value="yes" name="options[beverages]" id="beverage"> <label for="beverage">Beverages</labell>


<input name="option[adress]" class="form-control" type="text" 
placeholder="Address" required>

 <input name="option[email]" class="form-control" type="text"     placeholder="email" required>

I want to display name and value of each as: eg.adress:abcd wifi :yes email:abcd

how do i assign the associative array option i have tried

    $arr=$this->input->post('option[]');

    foreach($arr as $key => $value) 
    {
        echo($key);
    }

try like this

$arr=$this->input->post('option');

try this

<?php
$arr = $_POST["option"];

foreach($arr as $key => $value){
   echo $key.":".$value;
}
?>

$this->input-post('field_name') looks in the $_POST array for a key named 'field_name'. Try this.

$arr=$this->input->post('option[adress]');

foreach($arr as $key => $value) 
{
    echo($key);
}