$stmt = mysqli_stmt_prepare( $cxn, $sql12 );// line 507
//Warning: mysqli_stmt_prepare() expects parameter 1 to be mysqli_stmt, object given in /var/www/x5.php on line 507
$cxn is not a mysqli_stmt. Are you perhaps passing the mysqli database
resource instead of the statement?
See this section of my example:
$stmt = mysqli_prepare( $dbh, $q );
if( !$stmt )
throw new Exception( 'Error preparing statement' );
where $dbh is the result of mysqli_connect() and $q is a string
containing your unbound query.
-Matt
On 09/28/2012 09:46 AM, Ethan Rosenberg, PhD wrote:
Matt -
Thanks.
Here is what I used, and it still generates an error:
$allowed_fields = array
( $_POST['Site'] => 's', $_POST['MedRec'] => 'i',
$_POST['Fname'] => 's', $_POST['Lname'] => 's',
$_POST['Phone'] => 's', $_POST['Height'] => 'i',
$_POST['Sex'] => 's', $_POST['Hx'] => 's',
$_POST['Bday'] => 's', $_POST['Age'] => 'i' );
if(empty($allowed_fields))
{
echo "ouch";
}
// Magically put everything together
$types = '';
$args = array();
foreach( $allowed_fields as $k => $type )
{
if( !array_key_exists( $k, $_POST ) )
continue;
$args[] = &$_POST[$k]; // Note the addition of the ampersand here
$types .= $type;
$sql12 .= " AND ($k = ?)";
}
echo "new query $sql12";
// For debugging and demonstration
echo 'Query: ' . $sql12 . PHP_EOL;
echo 'Bind types: ' . $types . PHP_EOL;
echo 'Arguments:' . PHP_EOL;
print_r($args);
$stmt = mysqli_stmt_prepare( $cxn, $sql12 );// line 507
//Warning: mysqli_stmt_prepare() expects parameter 1 to be mysqli_stmt, object given in /var/www/x5.php on line 507
if( !$stmt )
throw new Exception( 'Error preparing statement' ); // line 509
//Fatal error: Uncaught exception 'Exception' with message 'Error preparing statement' in /var/www/x5.php on line 509
//Exception: Error preparing statement in /var/www/x5.php on line 509
// Put the statement and types variables at the front of the
params to pass to mysqli_stmt_bind_param()
array_unshift( $args, $stmt, $types ); // Note that I've moved
this call. Apparently it doesn't pass back the result. I guess
sometimes I just forget these things.
// mysqli_stmt_bind_param()
if( !call_user_func_array( 'mysqli_stmt_bind_param', $args ) )
throw new Exception( 'Failed calling mysqli_stmt_bind_param' );
if( !mysqli_stmt_execute( $stmt ) )
throw new Exception( 'Error while executing statement' );
mysqli_stmt_bind_result( $stmt, $id, $data );
while( mysqli_stmt_fetch($stmt) )
printf( "%d %d\n", $id, $data );
mysqli_stmt_close( $stmt );
// mysqli_close( $cxm );
What did I do wrong???
Ethan
