php - Everything is ok but it says Severity: Notice Message: Undefined variable: categories -

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//controller: private function getall() {      $data['categories'] = $this->registrant_model->getalldepartment();     $this->load->view('systemadminuser/registrant', $data);  }  //model: public function getalldepartment() {     $this->db->select('*')->from('patient_db');     $query = $this->db->get();     return $query->result_array();  }   //view: <?php foreach($categories $c):?>     <tr>         <td><?php echo $c['id'];?></td>         <td><?php echo $c['phone'];?></td>         <td><?php echo $c['name'];?></td>     </tr> <?php endforeach;?>

this code. every time says undefined variable , invalid argument supplied foreach. please

you need pass $data array view controller

$data['categories'] = $this->registrant_model->getalldepartment(); $this->load->view('systemadminuser/registrant', $data);// pass $data view

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