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PHP

Posted by Brenda Krafft
Brenda Krafft
18,036 Points

Able to call "set_value" function in a class, but "get_value" function fails.

I have a User class defined in one php file:

class User {
  var $emp_id;

  function set_emp_id($id) { $emp_id = $id; }
  function get_emp_id() {  return $emp_id; }
}

In my index.php file I include the above file and create an instance of the user, like so:

$user = new User();
$user->set_emp_id($employee["emp_id"]);

That works fine. BUT when I try to get the value in index.php later:

echo "emp ID: " . $user->get_emp_id() ;

I get an error tellng me that $emp_id is an undefined variable in my get_emp_id() function.

I know that $emp_id is getting set, because I can echo that out from the "set_emp_id()" function. I also checked that my $user class existed with an "isset($user)" check, and it returned true.

So the $user class exists, I set a value with the set function, but the get function doesn't recognize the only variable in the User class. UGH!

1 Answer

simhub
simhub
26,544 Points

hi Brenda,
you confuse javascript with php, i guess.
there is no "var" in php, as far as i know.

you could try this:

User_class.php 

class User {

    //set private or public variable
    private  $emp_id;

    //set your $emp_id variable  equal to what ever you put inside the param.
    function set_emp_id($id) { $this->emp_id = $id; }

    //return private or public variable
    function get_emp_id() {  return $this->emp_id; }
}

index.php 

include "User_class.php";

$user = new User();
$user->set_emp_id("emp_id");

echo "emp ID: " . $user->get_emp_id() ;
Brenda Krafft
Brenda Krafft
18,036 Points

Thanks!