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PHP CRUD Operations with PHP Updating and Deleting Records Updating Records

Backend Intern
Backend Intern
7,148 Points
Posted by Backend Intern
Backend Intern
7,148 Points

Database was not updated

I can't seem to update the database on this challenge. Would you be nice and look at my code, maybe i have a syntax error.

index.php 
<?php
function reassign_task($old, $new) {
    include 'connection.php';
  $id = 1;
  $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
  try{
  $query = $db->prepare("UPDATE tasks SET project_id = ? WHERE project_id = ?");
    $query->bindparam(1, $query, PDO::PARAM_INT);
    $query->bindparam(2, $query, PDO::PARAM_INT);

  }catch(Exception $e){
     echo "Message: " . $e->getMessage();
  }
  return $query->execute(array($old,$new));

}
echo reassign_task(1, 1);

1 Answer

Mike Wagner
Mike Wagner
23,559 Points

You just have a couple tiny issues that can be fixed pretty easily. The first is your casing is wrong for bindparam. It should be bindParam. Secondly, inside your bindParam() you're not actually setting $old and $new. By changing those two lines to this:

$query->bindParam(1, $new, PDO::PARAM_INT);
$query->bindParam(2, $old, PDO::PARAM_INT);

you will establish the binding you need. I think the confusion here is in the way you're trying to use your execute call, which is your final issue. While it can be used similarly (see examples #2 and #3 here though the whole page should help a bit), because you're using bindParam to set up the prepared statement you should call execute() without any parameters.

If you clean up those 3 issues, your code will complete the Challenge as expected and you'll be on your way, :)