Unable to insert multiple checkbox data in the database - php

Question

UPDATED. I'm having problem about inserting multiple checkbox data in the database.
Here is my view
<?php
$i = 0;
$qArr = array();
$qArrc = 0;
$qArr1 = array();
$qArrc1 = 0;
$uArr = array();
$u = 0;
foreach($questions->result() as $q){ ?>
<input type="checkbox" name="check[<?php echo $i; ?>]" value="<?php echo $qArr[$qArrc++] = $q -> questions; ?>"> <?php echo $q->questions; ?> <br>
<input class="form-control" value="<?php echo $uArr[$u++] = $this->session->userdata('user_id'); ?>" name="hidden[<?php echo $i; ?>]" type="hidden">
<input class="form-control" value="<?php echo $qArr1[$qArrc1] = $q->id; ?>" name="hidden1[<?php echo $i; ?>]" type="hidden">
<?php
$i++;
}?>
<button type="submit" name="submit" class="btn btn-primary">Submit</button>
Here's my controller
for($i = 0; $i<count($this->input->post('check')); $i++){
$data1 = array(
'question' => $this->input->post('check')[$i],
'speaker_id' => $this->input->post('hidden')[$i],
'question_id' => $this->input->post('hidden1')[$i]
);
$this->input->post('submit');
$this->Speaker_Model->insert_speakerfeedback($data1);
}redirect('speaker/createfeedback');
Here's my model
public function insert_speakerfeedback($data1){
$this->db->insert("speakerdata", $data1);
}

Answer 1

Modify your for loops :
for($i = 0; $i<count($this->input->post('check')); $i++){
to use foreach instead` :
foreach ($this->input->post('check') as $i => $value) {
So it will prevent getting undefined index if you skip some checkbox. And the redirect line should be outside of the loops.
For bulk insert, you could use insert_batch function.
Within the loop, change :
$data1 = array(
to
$data1[] = array(
So it will not overwriting on each iteration.
And on the Model, change :
$this->db->insert("speakerdata", $data1);
to :
$this->db->insert_batch("speakerdata", $data1);