Undefined PHP property in class

Question

For the sake of the thread I have only 2 PHP classes, one for the Database and one for Users in my database.

When running the executing the code in my Users class a PHP notice is displayed on my browser stating..

Notice: Undefined property: Database::$escape in /my/directory/user.class.php on line x

In my Users class I have the following code:

$Database = new Database();
$submitData = array_map($Database->escape, $submitData);
$result = $Database->query("SELECT user_id FROM users WHERE email_address = " . $Database->quote($formData['email_address']));

In my Database class I have the following:

class Database { 
    private $db = array();
    private $connection;
    public $result;      

    public function escape($data) {
        return mysqli_real_escape_string($this->connection, $data);
    }   
...

use __set() and __get() magic methods to avoid this error !! — Abhik Chakraborty, Feb 25 '14 at 18:31
ah escape() is a method and u r trying to access as member variable — Abhik Chakraborty, Feb 25 '14 at 18:32

score 1 · Accepted Answer · answered Feb 25 '14 at 18:33

1

Inproper callback, correct callback:

$submitData = array_map(array($Database, "escape"), $submitData);

answered Feb 25 '14 at 18:33

ziollek

1,973
1
12
10

score 0 · Answer 2 · answered Feb 25 '14 at 18:35

0

Try to give your Database instance another name, i think, when you want to use

$Database->escape

, php refers to

Database::$escape

, which is a static variable of the class Database, and such is not defined.

answered Feb 25 '14 at 18:35

Sirac

693
4
18

Emi · Answer 3 · 2014-02-25T18:43:42.783

0

In your code you have array_map of $Database-> escape which searches for that property and throws the error. You should have a callable function's name like "escape" or some other function.

edited Feb 25 '14 at 18:43

answered Feb 25 '14 at 18:36

Emi

1,018
9
13

Undefined PHP property in class

3 Answers3