Class variables causing blank page?

execute

Heres a code:

class test {
var $cookie = time()+50000;
 function importantfunction(){
  //do something important.
 }
}
//next page
$test = new test;
$test->importantfunction();

i had a bunch of functions
and i stripped it all down, and found that if i had this written in the class... It makes a blank page. Why can't i enter a variable and use a built in function?
everytime i use a built in function while defining my vars, it gives a blank page.
If this is an innappropriate way to use Classes...

How should i define time()+50000, to $test->cookie?

And also, this is a valid way to use classes right?:

class test2 {
var $info;
 function doID($id){
 //function that does something with ID.
 }
}
$test2 = new test2();
$test2->doID(335);

That should work if im not mistaken, the "$test2->doID(335)" is in another page.
Because i am not sure if i can insert something info into a function inside a class.

toplay

I have to ask: Are you displaying (echo/print) something in the "//do something important." and "//function that does something with ID." areas?

You can do lots of things in PHP without displaying anything and would give you a blank page. You have to display something in order not to get a blank page. :rolleyes:

If you are trying to display stuff and you're still getting a blank page, then post the exact code and not this abbreviated stuff.

🙂

execute

Yea it does print stuff...
lemme post code:

testclass1.php --------->

<?php
class authorization {
 /* defaults already entered! */
 var $login_page = "login.php";
 var $register_page = "register.php";
 var $fail_act;
 var $cookies;
 var $cookie = $_COOKIE['user'];
 var $cookie_expire = time()+60*60*24*30;
 var $no_cookie = time()+60*60*24;
 var $time = time();

 function activate($userid){
 	echo $userid;
 }
}
?>

Testpage ---->

<?php
/* Account activation script */ 
include("testclass1.php");
$authorize = new authorization;
$authorize->activate(444);
$error = $authorize->errorx;
?> 
<html>
<body>some html</body>
</html>

The first page is the class... and this page... should display "444" at the top of the page... but all it has is a blank white page. BUT if i take $_COOKIE AND time() functions OUT.... it starts working.

toplay

You would get parse errors with that code and you're not seeing them.

While testing/debugging this, make sure you have error_reporting(E_ALL); at the top of your script so you can see all of PHP's errors/warnings/notices. Also, make sure you have display_errors on in the php.ini file. Otherwise, set it using ini_set('display_errors', '1'); at the top of your script too.

Create a constructor and initialize the variables in there. Example:

class authorization {
     /* defaults already entered! */
    var $login_page = "login.php";
    var $register_page = "register.php";
    var $fail_act;
    var $cookies;
    var $cookie;
    var $cookie_expire;
    var $no_cookie;
    var $time;

function authorization () {
    $this->cookie = isSet($_COOKIE['user']) ? $_COOKIE['user'] : '';
    $this->cookie_expire = time()+60*60*24*30;
    $this->no_cookie = time()+60*60*24;
    $this->time = time();

}

function activate($userid){
    echo $userid;
}
}