Call to undefined method mysqli_stmt::get_result

Question

Here\'s my code:

include \'conn.php\';
$conn = new Connection();
$query = \'SELECT EmailVerified, Blocked FROM users WHERE Email = ? AND SLA = ? AND `Passwo         


        

Answer 1

I know this was already answered as to what the actual problem is, however I want to offer a simple workaround.

I wanted to use the get_results() method however I didn't have the driver, and I'm not somewhere I can get that added. So, before I called

$stmt->bind_results($var1,$var2,$var3,$var4...etc);

I created an empty array, and then just bound the results as keys in that array:

$result = array();
$stmt->bind_results($result['var1'],$result['var2'],$result['var3'],$result['var4']...etc);

so that those results could easily be passed into methods or cast to an object for further use.

Hope this helps anyone who's looking to do something similar.

Answer 2

for those searching for an alternative to $result = $stmt->get_result() I've made this function which allows you to mimic the $result->fetch_assoc() but using directly the stmt object:

function fetchAssocStatement($stmt)
{
    if($stmt->num_rows>0)
    {
        $result = array();
        $md = $stmt->result_metadata();
        $params = array();
        while($field = $md->fetch_field()) {
            $params[] = &$result[$field->name];
        }
        call_user_func_array(array($stmt, 'bind_result'), $params);
        if($stmt->fetch())
            return $result;
    }

    return null;
}

as you can see it creates an array and fetches it with the row data, since it uses $stmt->fetch() internally, you can call it just as you would call mysqli_result::fetch_assoc (just be sure that the $stmt object is open and result is stored):

//mysqliConnection is your mysqli connection object
if($stmt = $mysqli_connection->prepare($query))
{
    $stmt->execute();
    $stmt->store_result();

    while($assoc_array = fetchAssocStatement($stmt))
    {
        //do your magic
    }

    $stmt->close();
}

Answer 3

I was getting this same error on my server - PHP 7.0 with the mysqlnd extension already enabled.

Solution was for me (thanks to this page) was to deselect the mysqli extension and select nd_mysqli instead.

NB - You may be able to access the extensions selector in your cPanel. (I access mine via the Select PHP Version option.)

Answer 4

Here is my alternative. It is object-oriented and is more like mysql/mysqli things.

class MMySqliStmt{
    private $stmt;
    private $row;

    public function __construct($stmt){
        $this->stmt = $stmt;
        $md = $stmt->result_metadata();
        $params = array();
        while($field = $md->fetch_field()) {
            $params[] = &$this->row[$field->name];
        }
        call_user_func_array(array($stmt, 'bind_result'), $params) or die('Sql Error');
    }

    public function fetch_array(){
        if($this->stmt->fetch()){
            $result = array();
            foreach($this->row as $k => $v){
                $result[$k] = $v;
            }
            return $result;
        }else{
            return false;
        }
    }

    public function free(){
        $this->stmt->close();
    }
}

Usage:

$stmt = $conn->prepare($str);
//...bind_param... and so on
if(!$stmt->execute())die('Mysql Query(Execute) Error : '.$str);
$result = new MMySqliStmt($stmt);
while($row = $result->fetch_array()){
    array_push($arr, $row);
    //for example, use $row['id']
}
$result->free();
//for example, use the $arr

Answer 5

Your system is missing the mysqlnd driver!

If you are able to install new packages on your (Debian/Ubuntu-based) server, install the driver:

sudo apt-get install php5-mysqlnd

and then restart your web server:

sudo /etc/init.d/apache2 restart

Answer 6

Please read the user notes for this method:

http://php.net/manual/en/mysqli-stmt.get-result.php

It requires the mysqlnd driver... if it isn't installed on your webspace you will have to work with BIND_RESULT & FETCH!

https://secure.php.net/manual/en/mysqli-stmt.bind-result.php

https://secure.php.net/manual/en/mysqli-stmt.fetch.php