3 big problems with local apache server / php

coldwerturkey

Why is it that the scrip below works on three different linux remote servers, but not my local 2007 macbook apache 2.2 (PHP 5.2) server? (& by 'the script not working' I mean I get header warnings, "Cannot modify header information" from the line marked below.
On my remote servers, once the page loads, it goes directly to /admin.php?do=00, locally it just stays at /admin.php)

I'm getting so frusterated not being able to use this script... I'm thinking of paying someone to configure my macbook for me, but don't know where to find someone too in my small town, so I'm hoping someone here can help,

please help, any advice is greatly appreciated,

<?php
new admin;
global $DATA, $_SESSION;
class admin {
	function admin() {
        global $DATA, $_SESSION;
        session_start();
		//Connect to database info here
        if($_SESSION['loggedin'] != '1' AND $_GET['do'] != '00' AND $_GET['do'] != '01') {
            header("Location:admin.php?do=00"); //<<"Cannot modify header information - headers already sent by" .... (this line)
        }
        if($_SESSION['loggedin'] == '1' AND $_GET['do'] == '') {
            header("Location:admin.php?do=02");
        }
        if($_GET['do'] != '01' AND $_GET['do'] != '99') {
        	//html head info here
        }
    //html head info here
        switch($_GET['do']){
            case '00':
                $this->login();
            break;
            case '01':
                $this->dologin();
            break;
            case '02':
                $this->main();
            break;
            case '99':
                $this->logout();
            break;
        }
        //html footer info here
    }

function login(){
global $_SESSION, $DATA;
    if($_SESSION['loggedin'] == '1') {
        header("Location:admin.php?do=02");
    }
    //login form here
}

function dologin(){
global $_SESSION, $DATA;
    $error = '0';
    if($_POST['username'] == '' OR $_POST['password'] == '') {
        $error = '1';
    }
    //dehash password here
	//setup variables here
    $user = mysql_fetch_array($check);
    if($user['password'] != $pass) {
        $error = '1';
    }
    if($error == '0') {
        $_SESSION['loggedin'] = '1';
		$_SESSION['username'] = $_POST['username'];
        header("Location:admin.php?do=02");
    } else {
        $this->login();
    }
}

function main($msg="") {
global $_SESSION, $DATA;
	//Check if logged in
    if($_SESSION['loggedin'] != '1') {
    	$_SESSION['loggedin'] = '0';
        $this->login();
    } else {
    	//content seen when logged in here
    }

}

function logout() {
global $_SESSION;
    $_SESSION['loggedin'] = 0;
    session_destroy();
    header("Location:admin.php");
}

}
?>

Secondly, function cal_days_in_month() doesn't work locally, I've read its because something in php wasn't complied.... or something... can someone please shed light on that for me?

And lastly, I know its because of improper coding, but I get "Undefined index:" notices on every single page (using the same type of switch/case style of coding above) on my local server, but not my remote servers... what's up with that?

(I enabled apache and php with a tutorial on the web... I've done nothing and know nothing about why I'm having these problems)

Thanks in advanced,

formlesstree4

Okay, to make this easy, here's what I would do.

First, put this at the top of the page:

session_start();
if(!session_is_registered(session name)){
header("location:page you want to go to");
}

and change the header location, and the session name you wish to check. The header will load the login form or what ever it needs to be if the person is not logged in.

2nd, change this

        if($_SESSION['loggedin'] != '1' AND $_GET['do'] != '00' AND $_GET['do'] != '01') {
            header("Location:admin.php?do=00"); //<<"Cannot modify header information - headers already sent by" .... (this line)
        }

To this:

	if (!isset($_GET['do])){ // Much easier than what you had. This says if there is no ?do at the end, it will do (haha, pun) this below it.
            header("Location:admin.php?do=00"); //
        }

If that doesn't work, then try loading it onto a windows server, cause Mac is not recommended for PHP stuff. At least, from my experience, and what I have heard, cause Mac isn't cut out for it.

cahva

Notices and "headers allready sent" errors go hand in hand. Headers are set because php prints the notices before using header function. If theres lots of those notices, you can lower the error reporting level(to "E_ALL ^ E_NOTICE" for example) or change the display errors to 0 and read the errors from logs only.

There's a spelling error in last post:
$GET['do] should be $GET['do']

Also session_is_registered function is quite useless nowdays. Just use isset function to check if something exists:

session_start();
if(!isset($_SESSION['loggedin'])){
  header("location: loginpage");
}

Also theres no need to "globalise" $SESSION in every method because $SESSION is a superglobal and can be used in funtions allways(just like $POST, $GET etc.).

coldwerturkey

thank you both so much, everything works without a hitch,

my bad on blaming it on apache, when it was me along,

nrg_alpha

formlesstree4;10881935 wrote:
If that doesn't work, then try loading it onto a windows server, cause Mac is not recommended for PHP stuff. At least, from my experience, and what I have heard, cause Mac isn't cut out for it.

Are you serious?!? 😕

I'm considering dumping my sorry excuse of a dinosaur-in-a-box PC for an iMac. Reading that statement has me cringing. Can someone please confirm or deny this? I want to be able to do everything on my upcoming Mac.. from graphics (which isn't a problem.. we're talking photoshop here) to Dreamweaver and more..

While being able to install windows via bootcamp and installing localhost stuff like Apache and PHP there, I would like a unified all Mac development environment 🙁

Cheers,

NRG

formlesstree4

Also session_is_registered function is quite useless nowdays. Just use isset function to check if something exists:

Heh, I'm an older style coder xD