message trying to get property of non-object in codeigniter - php

Question

View:
Any one help me to solve this issue,i'm getting following error A PHP Error was encountered
Severity: Notice
Message: Trying to get property of non-object
Filename: users/dataupdate.php
Line Number: 5
This is my view page
dataupdate.php:
<form method="post" action="<?php echo base_url();?>user_controller/dataupdate/<?php echo $id;?>">
<table width="280" border="1" align="center">
<tr>
<td>Name</td>
<td><input type="text" name="name" value="<?php $result->name;?>"></td>
</tr>
<tr>
<td>Email:</td>
<td><input type="test" name="cnum" value="<?php $result->email;?>></td>
</tr>
<tr>
<td>mobile</td>
<td><input type="password" name="pass" value="<?php $result->mobile;?>></td>
</tr>
<tr>
<td colspan="2" align="center"><input type="submit" name="sub" value="Submit"></td>
</tr>
</table>
</form>
This is my controller
user_controller.php:
<?php
class user_controller extends CI_controller
{
function __construct()
{
parent:: __construct();
//$this->load->helper('form');
//$this->load->helper('url');
$this->load->model('user_model');
}
function add()
{
$data['title']="add";
$this->form_validation->set_rules("name","Name","required");//text fildname,userdefine name
$this->form_validation->set_rules("email","email","required");
$this->form_validation->set_rules("password","password","required");
$this->form_validation->set_rules("mobile","mobile","required");
if($this->form_validation->run())
{
$this->user_model->insert($_POST);
redirect("user_controller/display");
}
$this->load->view('users/add',$data);
}
function display()
{
$data['result']=$this->user_model->datadisplay();
$this->load->view('users/datadisplay',$data);
}
function deletedata($id)
{
$data['result']=$this->user_model->deletequery($id);
redirect("user_controller/display");
}
function updatedata($id)
{
$data['result']=$this->user_model->datadisplay(array("id"=>$id));
if($this->form_validation->run())
{
$_POST['id']=$id;
$id=$this->user_model->update($_POST);
}
$data['id']=$id;
$this->load->view('users/dataupdate',$data);
}
}
?>
This is my model
user_model.php:
<?php
class user_model extends CI_model
{
function insert($options=array()){
if(isset($options['name']))//userdefine name
$this->db->set('name',$options['name']);//db colomn name,text field name
if(isset($options['email']))
$this->db->set('email',$options['email']);
if(isset($options['password']))
$this->db->set('password',md5($options['password']));
if(isset($options['mobile']))
$this->db->set('mobile',$options['mobile']);
$this->db->insert('user');
return $this->db->insert_id();
}
function datadisplay()
{
$this->db->select('*');
$this->db->from('user');
if(isset($options['id']))
$this->db->where('id',$options['id']);
$query=$this->db->get();
return $query->result();
}
function deletequery($id)
{
$this->db->delete('user',array('id'=>$id));
}
function update($options=array())
{
if(isset($options['name']))//userdefine name
$this->db->set('name',$options['name']);//db colomn name,text field name
if(isset($options['email']))
$this->db->set('email',$options['email']);
if(isset($options['mobile']))
$this->db->set('mobile',$options['mobile']);
if(isset($options['id']))
$this->db->where('id',$options['id']);
$query=$this->db->update('user');
return $query;
}
}
?>

Answer 1

you should assign value into another variable than use it.
<?php
$tempname = $result[0]->name;
$email = $result[0]->email;
$mob = $result[0]->mobile;
?>
<form method="post" action="<?php echo base_url();?>user_controller/dataupdate/<?php echo $id;?>">
<table width="280" border="1" align="center">
<tr>
<td>Name</td>
<td><input type="text" name="name" value="<?php echo $tempname;?>"></td>
</tr>
<tr>
<td>Email:</td>
<td><input type="test" name="cnum" value="<?php echo $email;?>></td>
</tr>
<tr>
<td>mobile</td>
<td><input type="password" name="pass" value="<?php echo $mob;?>></td>
</tr>
<tr>
<td colspan="2" align="center"><input type="submit" name="sub" value="Submit"></td>
</tr>
</table>
</form>

Answer 2

When you get the message "trying to get the property of a non-object" in PHP, it means that you are trying to access an attribute of an object, where the object does not exist.
Consider this as an example. An object Car $car exists in your code and a Car object has a public attribute $speed. Normally you can access speed of the $car object by $car->speed. If somehow $car is set to null or some other value, where it is not a Car object, you will receive the error when attempting to access the $speed attribute of a Car.
Before you attempt to access the speed attribute you could do something like:
if (is_a($car, 'Car')) {
//do whatever you want when $car is a Car object
} else {
//do whatever you want when $car is not a Car object
}
You could also use this:
if ($car instanceof Car) {
//do whatever you want when $car is a Car object
} else {
//do whatever you want when $car is not a Car object
}
And finally, you can do this, which will suppress the exception, when $car is not a Car object:
if (#$car->speed)
//do whatever you want when $car is a Car object
} else {
//do whatever you want when $car is not a Car object
}
If $car is always supposed to be a Car object, and you're receiving the error, the best thing to do would be to avoid all of the additional logic and determine where your $car object is being corrupted and fix it.

Answer 3

simply you can use the object or variable like #$variable
<input name="ftp_name" value="<?php echo $ftpDetails->ftp_name;?>" type="text">
change to:
<input name="ftp_name" value="<?php echo #$ftpDetails->ftp_name;?>" type="text">