Undefined variable and Call to a member function on a non-object

[raydona]

Hello,
   I have the situation shown below in the code:

if(//condition is met)
{ $val = new Val();
  $valon = $val->check($_POST, array(.........));
}
if($valon->passes())
{ $use = new Use();
  ........
}
//check() and passes() both belong to class Val
public function check($source, $items = array())
{ ......................
  return $this;
}

I get the following warning and error:

Notice: Undefined variable: valon
and
Fatal error: Call to a member function passes() on a non-object

I can't see anything wrong with the code. check() returns an object of class Val which is assigned to $valon, $valon then calls a member function of class Val. Could you please help. Please let me know whether to include further code.

 

[Jacques1]

Your $valon variable is only defined if the condition of the if statement is fulfilled, but you use the variable in any case. That obviously makes no sense.

[codefossa]

Jacques1 is correct, but your second if statement could just go inside the first to solve that.

 

 

<?php

if ( /* true || false */ )
{
    $val   = new Val();
    $valon = $val -> check($_POST, array('a', 'b', 'c'));
    
    if ($valon -> passes())
    {
        $use = new Use();
        // ...
    }
}

?>