Update multiple rows with same id using foreach loop - mysql

Question

I echo 2 input-fields (2 db columns) foreach row in the database (where id=$id) with each row's data being inside the input field. Admin-user can change data inside input-field and click update.
Currently, when clicking the update-button, it does update the rows (where id=$id) but it updates each row with the input-data of the first input field instead of updating input-data foreach input field. Thank you in advance for help.
view:
<form action='<?= site_url("admin/do_edit_page"); ?>' method='POST'>
<?php foreach($link_data as $row) : ?>
Link:<br />
<input type='text' name='page_link_title' value='<?= $row->link_title; ?>'>
<input type='text' name='page_link_sub_title' value='<?= $row->link; ?>'><br />
<?php endforeach; ?>
<input type='submit' name='update_site' value='Update'>
</form>
controller:
public function do_edit_page(){
$id = $this->input->post('page_id', TRUE);
$this->content_model->update_links($id);
}
model:
public function update_links($id){
foreach($_POST as $update_rows){
$update_rows = array(
array(
'page_id' => $id,
'link_title' => $this->input->post('page_link_title', TRUE),
'link' => $this->input->post('page_link_sub_title', TRUE)
)
);
$this->db->update_batch('content_links', $update_rows, 'page_id');
}
}

Answer 1

you have to move your form tag between the foreach loop so that it can submit the data of single row. something like this
<?php foreach($link_data as $row) : ?>
<form action='<?= site_url("admin/do_edit_page"); ?>' method='POST'>
Link:<br />
<input type='text' name='page_link_title' value='<?= $row->link_title; ?>'>
<input type='text' name='page_link_sub_title' value='<?= $row->link; ?>'><br />
<input type='submit' name='update_site' value='Update'>
</form>
<?php endforeach; ?>