Weird error: "Unsupported operand types" when I run this script ...

[MoMoMajor]

<?php
session_start();  
if(isset($_SESSION['views'])) {
    $_SESSION['views'] = $_SESSION['views']+ 1;
} else {
    $_SESSION['views'] = 1;
echo "views = ". $_SESSION['views']; 
}
?>

 

When I run the above script I get this error : Fatal error:

 

Unsupported operand types in C:\xampp\htdocs\Website\sessions.php on line 4

 

I don't know why this is happening especially since I just copied and pasted this code from tizag.com php tutorials.

 

I did modify the code slightly ... it was originally: 

 

<?php
session_start();  
if(isset($_SESSION['views']))
    $_SESSION['views'] = $_SESSION['views']+ 1;
else
    $_SESSION['views'] = 1;

echo "views = ". $_SESSION['views']; 
?>

 

I just added some {} around the if statements.

 

Any help would be appreciated.

[GKWelding]

Try this instead and let me know...

 

if (isset($_SESSION['views']))
{
if (!is_numeric($_SESSION['views']))
{
echo "CRAP!";
}
++$_SESSION['views'];
}else{
$_SESSION['views'] = 1;
}

[GKWelding]

P.S - I've seen this error before by the way, what version of PHP are you running? Echoing phpinfo() will tell you this.

[MoMoMajor]

Try this instead and let me know...

 

if (isset($_SESSION['views']))
{
if (!is_numeric($_SESSION['views']))
{
echo "CRAP!";
}
++$_SESSION['views'];
}else{
$_SESSION['views'] = 1;
}

 

When I run the script all I get is a blank page.

 

 

P.S - I've seen this error before by the way, what version of PHP are you running? Echoing phpinfo() will tell you this.

 

I am running 5.2.6

[waynew]

If it's blank it could mean:

 

a) That the session variable "views" isn't set or that

b) There's an error but you don't have error reporting turned on.

 

Try

 

error_reporting(E_ALL);
if (isset($_SESSION['views']))
{
if (!is_numeric($_SESSION['views']))
{
echo "CRAP!";
}
++$_SESSION['views'];
}else{
$_SESSION['views'] = 1;
}

[GKWelding]

Well that means it's probably fixed. You just need to add in...

 

echo "views = ". $_SESSION['views']; 

 

To view the session views variable. Your final script should look like...

 

<?php

session_start();

if (isset($_SESSION['views']))
{
if (!is_numeric($_SESSION['views']))
{
echo "CRAP!";
}
++$_SESSION['views'];
}else{
$_SESSION['views'] = 1;
}

echo "views = ". $_SESSION['views'];

?>

[GKWelding]

If it's blank it could mean:

 

a) That the session variable "views" isn't set or that

b) There's an error but you don't have error reporting turned on.

 

Try

 

error_reporting(E_ALL);
if (isset($_SESSION['views']))
{
if (!is_numeric($_SESSION['views']))
{
echo "CRAP!";
}
++$_SESSION['views'];
}else{
$_SESSION['views'] = 1;
}

 

I think he just copied my code directly rather than integrating it into his own script and I hadn't included the echo command which is why he didn't see anything.

[waynew]

As GKWelding pointed out in his script. You MUST use

 

session_start();

 

At the top of every page when you're dealing with sessions.

[waynew]

<?php

session_start(); 
error_reporting(E_ALL); //hell yea motherfucker 
if(isset($_SESSION['views'])){
    $_SESSION['views'] ++;
}
else{
    $_SESSION['views'] = 1;
}

echo "views = ". $_SESSION['views']; 
?>

[MoMoMajor]

If it's blank it could mean:

 

a) That the session variable "views" isn't set or that

b) There's an error but you don't have error reporting turned on.

 

Try

 

error_reporting(E_ALL);
if (isset($_SESSION['views']))
{
if (!is_numeric($_SESSION['views']))
{
echo "CRAP!";
}
++$_SESSION['views'];
}else{
$_SESSION['views'] = 1;
}

 

Still blank. I get a lot of error messages so that would mean they are turned on right? Or is their more then one setting?

 

 

 

Well that means it's probably fixed. You just need to add in...

 

echo "views = ". $_SESSION['views']; 

 

To view the session views variable. Your final script should look like...

 

<?php

session_start();

if (isset($_SESSION['views']))
{
if (!is_numeric($_SESSION['views']))
{
echo "CRAP!";
}
++$_SESSION['views'];
}else{
$_SESSION['views'] = 1;
}

echo "views = ". $_SESSION['views'];

?>

 

Return is :

 

CRAP!views = Array

[MoMoMajor]

Oh wait ... I did just c/p into the code. I just added session_start()

 

<?php

session_start(); 

error_reporting(E_ALL);
if (isset($_SESSION['views']))
{
if (!is_numeric($_SESSION['views']))
{
echo "CRAP!";
}
++$_SESSION['views'];
}else{
$_SESSION['views'] = 1;
}
?>

 

it returns: CRAP!

[GKWelding]

In that case your view is an array and not an integer which is why you were getting the operand error in the first place.

 

You probably need to clear out the session and try rerunning the script as you've probably still got the old session open.

[waynew]

You session_destroy(); ONCE. Then remove it from your script.

[MoMoMajor]

ok it works now thank you very much guys