Php Pdo Connection Help!

[Freid001]

Ok so I am trying to connect to a mysql database and just simply return the id of a row in the table admin. However I get the following error message: Fatal error: Call to a member function fetch() on a non-object in /srv/disk5/657046/www/worldwarfare.atwebpages.com/testcon.php on line 19

 

 

Here is my PHP code:

 

<?php
session_start();
$mobile = $_SESSION['mobile'];
$user = $_SESSION['username'];
$host = '********';
$mysql_user = '******';
$mysql_password = '*******';
$mysql_database = '***********';


//PDO Connect
$db= new pdo("mysql:host=$host; $mysql_database", $mysql_user, $mysql_password);

//PDO Fetch Statement
$query = $db->query("SELECT `id` FROM `Admin`");

while($row = $query->fetch()){
echo $row['id'];
}

?>

 

 

In PHP4 this is what I am trying to do in PDO

 

$con = mysql_connect($host,$mysql_user,$mysql_password);
mysql_select_db($mysql_database);

$query = mysql_query("SELECT * FROM Admin");
$numrows = mysql_num_rows($query);
while ($row = mysql_fetch_assoc($query))
{
echo $row['id'];
}

 

 

 

 

Any Help Will Be Much Appreciated!

 

Thanks

Edited November 29, 2012 by Freid001

[Adam]

Have a read of the manual for PDO::query(). If the query fails, false is returned, not a statement object.

[Freid001]

Have a read of the manual for PDO::query(). If the query fails, false is returned, not a statement object.

 

But the query works fine in PHP 4.

Edited November 29, 2012 by Freid001

[Adam]

Well for one, the SQL in your PHP4 example is different. That doesn't change that the query is failing though. Have a look at PDO::errorInfo() to get more insight into what's going wrong.

[Freid001]

I have tried using this code. Which works but only returns a blank array. Not sure why?

 

 

//PDO Connect
$db= new pdo("mysql:host=$host; $mysql_database", "657046_ww", "sandon");

//PDO Statement
$sth = $db->prepare("SELECT * FROM Admin");
$sth->execute();

$result = $sth->fetchAll();
print_r($result);

Edited November 29, 2012 by Freid001

[Adam]

That means there are no results from the query.

[Freid001]

Must mean there is something wrong with the connection then because the query works fine in PHP 4. But The connection I used to connect to the db in PHP 4 also works fine. Not sure what I am doing wrong.

Edited November 29, 2012 by Freid001

[Adam]

The PDO constructor throws an exception if the connection failed. You keep posting different code; can you modify the original code to this and report back what it says:

 

//PDO Fetch Statement
$query = $db->query("SELECT `id` FROM `Admin`");

if (!$query) {
    var_dump($db->errorInfo());
    exit;
}

while($row = $query->fetch()){
    echo $row['id'];
}

 

FYI this isn't the way to handle erors, it's just to debug the problem.

Edited November 29, 2012 by Adam

[kicken]

You're not selecting which database to use.  Your DSN should look like:

"mysql:host=$host;dbname=$mysql_database"

 

[Freid001]

YES! Thanks so much. It is working now!

 

Kind of new to this PDO stuff LOL.

[Adam]

Ah, well spotted kicken!