Static variable not being set? - php

Question

I searched, and found this question, which helped me:
php static variable is not getting set
It did, however, not solve my entire problem.
Code:
Class DummyClass {
public static $result;
function __construct() {
$this->_setResultCode('testing');
}
public function getResultCode() {
return self::$result['code'];
}
private function _setResultCode($val) {
echo 'Im gonna set it to: ' . $val . '<br />';
self::$result['code'] = $val;
echo 'I just set it to: ' . $this->getResultCode;
die();
}
}
Outputs:
Im gonna set it to: testing
I just set it to:
What's going on here? How is this even possible?
EDIT: The problem was i missed the parentheses when calling getResultCode(). HOWEVER, i have another issue now. I can't seem to get the resultCode out of the class (later on in another instance of DummyClass).
Here is my relevant coded (No more example code because i seemed to mess that up):
Class lightweightContactFormPlugin {
// Set up/Init static $result variable
public static $result;
function __construct() {
//echo 'I just inited<br/><pre>';
//var_dump($this->getResultCode());
//echo '</pre><br/>';
}
public function run() {
// Set default value for resultCode
$this->_setResultCode('no_identifier');
// Check if form was posted
if(isset($_POST['cfidentifier'])) {
$fields = $this->_get_fields_to_send();
$valid = $this->_validate_fields($fields);
// Only continue if validatation was successful
if($valid == true) {
// Store mail result in $mail
$mail = $this->_send_mail($fields);
// Yay, success!
if($mail) {
$this->_setResultCode('sent_successfully');
return;
} else {
// Couldn't send mail, bu-hu!
$this->_setResultCode('not_sent');
return;
}
}
$this->_setResultCode('validation_fail');
return;
}
}
// Get and Set methods
public function getResultCode() {
return isset(self::$result['code']) ? self::$result['code'] : '';
}
private function _setResultCode($val) {
self::$result['code'] = $val;
}
}
Left some irrelevant methods out. None of the other methods set or get the resultCode, it shouldn't matter.
Any ideas why i can't access $result['code'] in another instance of the object (further down the page)?
I do this when i access it:
$plugin = new lightweightContactFormPlugin();
$cfstat = $plugin->getResultCode();
echo '<pre>';
var_dump($fstat);
echo '</pre>';
Result is:
NULL
The strange thing is, if i uncomment the code in __construct(), the CORRECT value does get printed out! But if i try to access it from getResultCode() after, it returns NULL again. What is going on?

Answer 1

echo 'I just set it to: ' . $this->getResultCode;
I think you're missing a few parenthesis here.

Answer 2

You have no return within getResultCode()

Answer 3

You have to call getResultCode() as a method.
echo 'I just set it to: ' . $this->getResultCode();

Answer 4

A. your code is wrong ... there is nothing like __constructor in PHP it should be
function __construct() {
B. Your code should also return the following since getResultCode was not set
Notice: Undefined property: DummyClass::$getResultCode
You should be calling
echo 'I just set it to: ' . $this->getResultCode();
Your Final Code :
class DummyClass {
public static $result;
function __construct() {
$this->_setResultCode('testing');
}
public function getResultCode() {
return self::$result['code'];
}
private function _setResultCode($val) {
echo 'Im gonna set it to: ' . $val . '<br />';
self::$result['code'] = $val;
echo 'I just set it to: ' . $this->getResultCode();
die();
}
}
new DummyClass();
Output
Im gonna set it to: testing
I just set it to: testing

Answer 5

use return like this
public function getResultCode() {
return self::$result['code'];
}
and use $this->getResultCode();
EDIT
the only problem i can see is you have just written return; , because of that it return NULL, change it to
return $this->getResultCode();