Trying to get property of non-object / Call to a member function bind_param() on boolean

Question

I am aware that this question has been asked many times but the solutions doesn\'t seem to be working for me.

I am writing a simple blog and I wanted to make an arch

Answer 1

In regards to your updated status, fetch_assoc() is not a member of a mysqli statement object. However, fetch() is and is the member function you are looking for.

You can also use bind_result() to access the data.

So an example would look something like:

    $timestamp = time();

    //create select statement
    $stmt = $con->prepare("SELECT column_x, column_y, column_z FROM table_name WHERE date < ?");

    //bind $timestamp to the prepared statement
    $stmt->bind_param("i", $timestamp);
    $stmt->execute();

    //bind each selected column to a variable for iteration
    $stmt->bind_result($column_x, $column_y, $column_z);
    while($stmt->fetch())
    {
        echo $x . " " . $y . " " . $z . "\n";
    }

Here is the reference link for the mysqli_stmt class

edit: I would also like to point out that while a mysli_stmt object does have a num_rows property, it is not the same as the num_rows property on a query result.

Answer 2

Have a read here: http://php.net/manual/en/mysqli.prepare.php prepare you get a false if it fails. Hence your error.

The issue is your SQL your need to use ? in place of variable names and prepare expects the data to bind. I believe you want:

$sql = "SELECT * FROM posts WHERE date >= ? AND date <= ? ORDER BY date DESC";
$stmt->bind_param('ii', $from, $to);