Codeigniter loop through post array

Question

So i have this form:

    

        

        
Step #1
                 


        

Answer 1

Update

I corrected the handling of the difference between textareas and input fields. Sidenote: The whole Controller logic belongs into a model. I just put it into the Controller here for simplification reasons.

HTML

<form id="stepform" action="#" method="post">
    <fieldset>
    <legend>Step #1</legend>
    <label>Title</label>
    <input type="hidden" name="csrf_modo" value="b94961394f8e6f7efaa4e37ca9007822">
    <input type="text" name="field[input][]" class="input-xlarge">
    <label>Body</label>
    <textarea class="input-xlarge" name="field[textarea][]"></textarea>
    </fieldset>
</form>

JS

count = 2;
$("#addstep").click(function(){


    $('#stepform').append('<legend>Step #' + (count++) + '</legend>');
    $('#stepform').append('<label>Title</label><input type="text" name="field[input][]" class="input-xlarge">');
    $('#stepform').append('<label>Body</label><textarea class="input-xlarge" name="field[textarea][]"></textarea>');
    $('#addstep').scrollintoview();
    return false;

});

PHP

class SomeController extends MY_Controller{

    public function process_request()
    {
        $insert_data = array();
        $field_data = $this->input->post('field');

        for($i = 0; $i < count($field_data['input']); $i++)
        {
            $insert_data[] = array(
                'db_col_name_input' => $field_data['input'][$i],
                'db_col_name_textarea' => $field_data['textarea'][$i]
            );
        }

        $this->db->insert_batch('my_table', $insert_data);

    }

}

Old Answer:

Since you're appending square brackets to your input fields name you will get an array with the values of all fields that are having this name. So you can go trough them with a foreach loop and store all the values in an array and use CodeIgniters insert_batch() Method to insert multiple data at the same time.

class SomeController extends MY_Controller{

    public function process_request()
    {
        $insert_data = array();

        foreach($this->input->post('field') AS $field)
        {
            $insert_data[] = array(
                'db_col_name' => $field
            )
        }

        $this->db->insert_batch('my_table', $insert_data);

    }

}