Question : var dump not working correctly

hello there,
i am trying to see the results of the mysql update to see if mysql updated the record or it got an error..
when I try to use the var dump i get bool(false) whats can cause this?

Code Snippet:

         
           
           
             function GetMyConnection() {
    global $var;
    if( $var )
        return $var;
    $var = mysql_connect( 'localhost', 'root', 'pass') or die('Could not connect to server.' );
    mysql_select_db('db_site_forum', $var) or die('Could not select database.');
    return $var;
}
 
$connection = GetMyConnection();
$qu3 = mysql_query('UPDATE post SET pagetext="'.$post.'" WHERE postid='.$pid, $connection);
var_dump($qu3);

           
         

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Answer : var dump not working correctly

Here is my "teaching sample" for how to do a few simple MySQL activities. Note the extensive use of error checking! Copy and Paste as needed.

Best, ~Ray

                       
         
           
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             NO DB CONNECTION: ";
   echo "
 $errmsg 
";
}
 
// SELECT THE MYSQL DATA BASE
// MAN PAGE: http://us2.php.net/manual/en/function.mysql-select-db.php
if (!$db_sel = mysql_select_db($db_name, $db_connection))
{
   $errmsg = mysql_errno() . ' ' . mysql_error();
   echo "
NO DB SELECTION: ";
   echo "
 $errmsg 
";
   die('NO DATA BASE');
}
// IF WE GOT THIS FAR WE CAN DO QUERIES
 
 
 
 
// ESCAPING A DATA FIELD FOR USE IN MYSQL QUERIES
// MAN PAGE: http://us2.php.net/manual/en/function.mysql-real-escape-string.php
$username = mysql_real_escape_string($_POST["username"]);
 
 
 
 
// CREATING AND SENDING A SELECT QUERY AND TESTING THE RESULTS
// MAN PAGE:http://us2.php.net/manual/en/function.mysql-query.php
$sql = "SELECT id FROM my_table WHERE username='$username'";
$res = mysql_query($sql);
 
// IF mysql_query() RETURNS FALSE, GET THE ERROR REASONS
if (!$res)
{
   $errmsg = mysql_errno() . ' ' . mysql_error();
   echo "
QUERY FAIL: ";
   echo "
$sql 
";
   die($errmsg);
}
// IF WE GET THIS FAR, THE QUERY SUCCEEDED AND WE HAVE A RESOURCE-ID IN $res SO WE CAN NOW USE $res IN OTHER MYSQL FUNCTIONS
 
 
 
 
// DETERMINE HOW MANY ROWS OF RESULTS WE GOT
// MAN PAGE: http://us2.php.net/manual/en/function.mysql-num-rows.php
$num = mysql_num_rows($res);
if (!$num)
{
   echo "
QUERY FOUND NO DATA: ";
   echo "
$sql 
";
}
else
{
   echo "
QUERY FOUND $num ROWS OF DATA ";
   echo "
$sql 
";
}
 
 
 
 
// A WAY OF DETERMINING HOW MANY ROWS WE HAVE IN A TABLE
// MAN PAGE:http://us.php.net/mysql_fetch_array
$sql = "SELECT COUNT(*) FROM my_table";
$res = mysql_query($sql);
 
// IF mysql_query() RETURNS FALSE, GET THE ERROR REASONS
if (!$res)
{
   $errmsg = mysql_errno() . ' ' . mysql_error();
   echo "
QUERY FAIL: ";
   echo "
$sql 
";
   die($errmsg);
}
// GET THE RESULTS SET ROW IN AN ARRAY WITH A NUMERIC INDEX - POSITION ZERO IS THE COUNT
$row = mysql_fetch_array($res, MYSQL_NUM);
$num = $row[0];
 
 
 
 
// ITERATE OVER THE RESULTS SET TO SHOW WHAT WE FOUND
// MAN PAGE: http://us2.php.net/manual/en/function.mysql-fetch-assoc.php
echo "\n"; // MAKE IT EASY TO READ
while ($row = mysql_fetch_assoc($res))
{
   var_dump($row); // MAN PAGE: http://us2.php.net/manual/en/function.var-dump.php
}
 
 
 
 
// MAKING AN INSERT QUERY AND TESTING THE RESULTS
$sql = "INSERT INTO my_table (username) VALUES (\"$username\")";
$res = mysql_query($sql);
 
// IF mysql_query() RETURNS FALSE, GET THE ERROR REASONS
if (!$res)
{
   $errmsg = mysql_errno() . ' ' . mysql_error();
   echo "
QUERY FAIL: ";
   echo "
$sql 
";
   die($errmsg);
}
// IF WE GET THIS FAR, THE QUERY SUCCEEDED AND WE HAVE A RESOURCE-ID IN $res SO WE CAN NOW USE $res IN OTHER MYSQL FUNCTIONS
 
// GET THE AUTO_INCREMENT ID OF THE RECORD JUST INSERTED
// MAN PAGE: http://us2.php.net/manual/en/function.mysql-insert-id.php
$id  = mysql_insert_id($res);
           
         

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