Mysqli查询返回空字符串

Question

In progress of this issue:

Mysqli query return empty results

This is my php code:

<?php 

error_reporting(E_ALL);
ini_set('display_errors', 1);


$mysqli2 = new mysqli('');

    if (mysqli_connect_errno()) {
    printf("Connect failed: %s
", mysqli_connect_error());
    exit();
   }

    $sql2 = "SELECT message FROM wall_workouts_names WHERE id = '43' ";

    $stmt2 = $mysqli2->prepare($sql2) or trigger_error($mysqli2->error."[$sql2]");

    $stmt2->execute();

    $stmt2->bind_result($message);

    $stmt2->store_result();

     $stmt2->fetch();

    if($stmt2->num_rows > 0)
       echo $message;    
   else
        echo 'empty';    

?>

From this code i get empty string as a result.

This is my table in phpmyadmin

When i run the same code but with this query:

 $sql2 = "SELECT workout_name FROM wall_workouts_names WHERE id = '43' ";

My echo is "t", as is should be.

But when i run this query:

 $sql2 = "SELECT message FROM wall_workouts_names WHERE id = '43' ";

I get empty string, something like this: "".

I dont understand what im doing wrong.

Answer 1

According to this commenter, the

"proper procedure order is: prepare -> execute -> store_result -> bind -> fetch."

I notice that you are calling store_result() AFTER you call bind_result(). Does changing the order of those calls make any difference?