The right way of uploading multiple files using codeigniter - codeigniter

Question

I am trying to upload multiple images at once but this code contain error and a error message is showing that Undefined index: photo1A. So help me to fix it.
function add_student_database(){
//echo '<pre>';print_r($_POST);print_r($_FILES);exit;
$this->load->library('upload');
if($this->input->post('stu_class')=='first' && $this->input->post('section')=='A')
{
$data = $this->input->post('student1A');
$img_data = $_FILES['photo1A'];
// echo '<pre>';print_r($_FILES);exit;
$count = count($_FILES['photo1A']);
$config['upload_path'] = './upload/';
$config['allowed_types'] = 'jpg|png|gif';
$config['max_size'] = '100000';
$config['max_width'] = '2000';
$config['max_height'] = '2000';
$this->load->library('upload', $config);
for($i=0;$i<$count;$i++)
{
$_FILES['photo1A']['name'] = $img_data['photo1A']['name'][$i];
$_FILES['photo1A']['type'] = $img_data['photo1A']['type'][$i];
$_FILES['photo1A']['tmp_name'] = $img_data['photo1A']['tmp_name'][$i];
$_FILES['photo1A']['error'] = $img_data['photo1A']['error'][$i];
$_FILES['photo1A']['size'] = $img_data['photo1A']['size'][$i];
$this->upload->initialize($config);
$this->upload->do_upload('photo1A');
}
$section = "A";
$stu_class = "class1";
}
elseif($this->input->post('stu_class')=='first' && $this->input->post('section')=='B')
{
$data = $this->input->post('student1B');
$section = "B";
$stu_class = "class1";
}
elseif($this->input->post('stu_class')=='second' && $this->input->post('section')=='A')
{
$data = $this->input->post('student2A');
$section = "A";
$stu_class = "class2";
}
elseif($this->input->post('stu_class')=='second' && $this->input->post('section')=='B')
{
$data = $this->input->post('student2B');
$section = "B";
$stu_class = "class2";
}
$this->marksheet_data->get_data($data, $section, $stu_class);
}

Answer 1

$message="";
$error=0;
$data1 = $this->input->post('data1');
$data2 = $this->input->post('data2');
$data3 = $this->input->post('data3');
$data.. = $this->input->post('data..');
$datan = $this->input->post('datan');
if($error==0)
{
$newdata = array(
'colName1_of_table' => $data1,
'colName2_of_table' => $data1,
'colName..._of_table'=>$data..,
'colNamen_of_table'=>$datan
);
$insert = $this->db->insert('tblName', $newdata);
$lastid=$this->db->insert_id();
if($insert)
{
//.............image upload.......................................//
$config['upload_path'] = PHYSICAL_PATH.'design/front/';
//$config['allowed_types'] = 'gif|png|jpeg|jpg';
$config['allowed_types'] = '*'; //allow all type of file with any extension
$config['max_size'] = 1024 * 8;
$config['encrypt_name'] = TRUE;
$this->load->library('upload', $config);
$status = "";
$msg = "";
$userpicture='';
if(!empty($_FILES["inputTAGnameOFfirstImage"]["name"]))
{
$file_element_name = 'inputTAGnameOFfirstImage';
if (!$this->upload->do_upload($file_element_name))
{
$status = 'error';
$msg = $this->upload->display_errors('', '');
}
else
{
$data = $this->upload->data();
if($data)
{
$config = array(
'source_image' => $data['full_path'],
'new_image' => $config['upload_path'] . '/thumbnail/',
'maintain_ratio' => true,
'width' => 100,
'height' => 100
);
$this->load->library('image_lib', $config);
$this->image_lib->resize();
$this->image_lib->clear(); /*this is important*/
$userpicture = $data['file_name'];
}
}
$image_data=array(
'colNameofImage_to_store' => $userpicture
);
$this->db->where('id', $lastid);
$insert_image = $this->db->update('tblName',$image_data);
}
//for Next image
$config1['upload_path'] = PHYSICAL_PATH.'design/back/';
//$config1['allowed_types'] = 'gif|png|jpeg|jpg';
$config1['allowed_types'] = '*';
$config1['max_size'] = 1024 * 8;
$config1['encrypt_name'] = TRUE;
$this->load->library('upload', $config1);
$this->upload->initialize($config1);
$status = "";
$msg = "";
$userpicture1='';
if(!empty($_FILES["inputTAGnameOFsecondImage"]["name"]))
{
$file_element_name = 'inputTAGnameOFsecondImage';
if (!$this->upload->do_upload($file_element_name))
{
$status = 'error';
echo $msg = $this->upload->display_errors('', '');
}
else
{
$data1 = $this->upload->data();
if($data1)
{
$config2 = array(
'source_image' => $data1['full_path'],
'new_image' => $config1['upload_path'] . '/thumbnail/',
'maintain_ratio' => true,
'width' => 100,
'height' => 100
);
// Initialize
$this->load->library('image_lib', $config2, 'image_lib_thumb');
//$this->image_lib->resize();
$this->image_lib_thumb->resize();
$this->image_lib_thumb->clear(); /*this is important*/
$userpicture1 = $data1['file_name'];
}
}
$new_image_data=array(
'second Image _colName_inTbl' => $userpicture1
);
$this->db->where('id', $lastid);
$insert_image = $this->db->update('tblName',$new_image_data);
}
}
return $insert;
}
Hope this help you. Question are welcome. Loop according to your need as you were trying to do.