How to insert multiple value data in codeigniter - codeigniter

Question

In my select option I have value with two numbers Example value="163, 162"
I have a model function where can insert the first value number which would be category id 163
Var Dump
array(2) { [0]=> string(3) "163" [1]=> string(4) " 162" }
Question: I need to add parent_id = " . $this->db->escape($category['parent_id']) . " but not sure how to get the second value number and set it as the parent_id = " . $this->db->escape($category['parent_id']) . " parent id would be example 162
Model Function
public function page_update($page_id, $data) {
$this->db->query("DELETE FROM " . $this->db->dbprefix . "page_to_category WHERE page_id = '" . (int)$page_id . "'");
if (isset($data['categories'])) {
foreach ($data['categories'] as $category) {
//$data_sample = explode(',', $category['category_id']);
//var_dump($data_sample);
//exit;
$this->db->query("INSERT INTO " . $this->db->dbprefix . "page_to_category SET
page_id = '" . (int)$page_id . "',
category_id = " . $this->db->escape($category['category_id']) . "
");
}
}
}
View
<div class="form-group">
<label class="col-sm-2">Category</label>
<div class="col-sm-10">
<select class="form-control" name="categories[1][category_id]">
<option value="0">-- No Category Required --</option>
<?php foreach ($categories as $category) {?>
<?php if ($category['category_id'] == $category_id) {?>
<option value="<?php echo $category['category_id'];?>, <?php echo $category['parent_id'];?>" selected="selected">
<?php echo $category['name'];?></option>
<?php } else { ?>
<option value="<?php echo $category['category_id'];?>, <?php echo $category['parent_id'];?>"><?php echo $category['name'];?></option>
<?php }?>
<?php }?>
</select>
</div>
</div>

Answer 1

It is quite easy and preferable to use Codeigniter syntax, in case you might want to have a look, this code does the same as #Arcanix answered but uses CI Active Record syntax,
public function page_update($page_id, $data)
{
$this->db->delete('page_to_category', array('page_id' => (int)$page_id));
if (isset($data['categories']))
{
foreach ($data['categories'] as $category)
{
$data_sample = array_map("trim",explode(',', $category['category_id']));
$insert_data = array(
'page_id' => (int)$page_id,
'category_id' => $this->db->escape($data_sample[0])
);
$this->db->insert('page_to_category', $insert_data);
}
}
}

Answer 2

The answer would be something like this:
public function page_update($page_id, $data) {
$this->db->query("DELETE FROM " . $this->db->dbprefix . "page_to_category WHERE page_id = '" . (int)$page_id . "'");
if (isset($data['categories'])) {
foreach ($data['categories'] as $category) {
$data_sample = array_map("trim",explode(',', $category['category_id']));
//Here $data_sample[0] will always be your category id and $data_sample[1] will be your parent id
$this->db->query("INSERT INTO " . $this->db->dbprefix . "page_to_category SET
page_id = '" . (int)$page_id . "',
category_id = " . $this->db->escape($data_sample[0]) . "
");
}
}
}
Here $data_sample[0] will always be your category id and $data_sample[1] will be your parent id

Answer 3

If you want to do multiple inserts, You can do it with active records. First create an array of datas which you want to insert, and then use insert_batch method
$insertdata = array(
array(
'email' => 'email' ,
'name' => 'My Name' ,
'date' => 'My date'
),
array(
'email' => 'some data' ,
'name' => 'some data' ,
'date' => 'some data '
)
);
$this->db->insert('mytable', $insertdata);
You can get more info from here Insert methods used in CodeIgniter