passing user object to function and then to prepared stament (PHP) - php

Question

I'm fairly new to PHP, and I'm working with mysqli, OOP and prepared statements.
My question is this:
I'm trying to pass an user(object) to an Insert_user(func) in my database(class).
I have 3 classes, 'logic', 'data' and 'index'. Index includes data and logic, and initiates
the connection and user.
In my function (insert_user), I'm using an array to pass user variables into, before
binding and executing my statement.
Hers is my code:
<?php
function insert_user($user) {
$query = "INSERT INTO user VALUES (?,?,?,?,?,?,?,?,?,?)";
$binding = 'issssiisss';
$variables = array( $user->user_id, $user->f_name, $user->l_name, $user->address, $user->city, $user->zipcode, $user->mobile_number, $user->mail, $user->pass_key, $user->pass_word);
$stmt = $this->mysqli->prepare($query);
$stmt->bind_param($binding,$variables[0],$variables[1],$variables[2],$variables[3],$variables[4],$variables[5],$variables[6],$variables[7],$variables[8],$variables[9]);
$stmt->execute();
}
?>
Here is my var_dump from browser:
object(user)#1 (10) { ["user_id"]=> int(1) ["f_name"]=> string(5) "pelle" ["l_name"]=> string(5) "kanin" ["address"]=> string(7) "vænget" ["city"]=> string(6) "aaaaaa" ["zipcode"]=> int(123) ["mobile_number"]=> int(123) ["mail"]=> string(4) "fedt" ["pass_key"]=> string(3) "ert" ["pass_word"]=> string(4) "erto" }
string(10) "issssiisss"
array(10) { [0]=> int(1) [1]=> string(5) "pelle" [2]=> string(5) "kanin" [3]=> string(7) "vænget" [4]=> string(6) "aaaaaa" [5]=> int(123) [6]=> int(123) [7]=> string(4) "fedt" [8]=> string(3) "ert" [9]=> string(4) "erto" }
object(mysqli_stmt)#4 (10) { ["affected_rows"]=> int(-1) ["insert_id"]=> int(0) ["num_rows"]=> int(0) ["param_count"]=> int(10) ["field_count"]=> int(0) ["errno"]=> int(0) ["error"]=> string(0) "" ["error_list"]=> array(0) { } ["sqlstate"]=> string(5) "00000" ["id"]=> int(1) }
What am i doing wrong!?
Thank you.
EDIT: The problem is inserting the data into the database. It simply doesn't work. When i execute no data is put in.
I think the problem lies with the $stmt->bind_param function, and inserting the data from the array.
param_count = 10 and field_count = 0!
EDIT !2!:
OK. So, it actually works! what i did wrong was specify a integer value in my user_id, i.e. when i created the user. My database uses AUTO.INCREMENT on that value, and therefore it didn't work..
Anyways, thanks for the answer. G'day!

Answer 1

Check if you have any errors when after each mysqli statement to isolate the error:
$stmt = $this->mysqli->prepare($query);
if ( false===$stmt ) {
die('prepare() failed: ' . htmlspecialchars($mysqli->error));
}
$stmtBindResult = $stmt->bind_param($binding,$variables[0],$variables[1],$variables[2],$variables[3],$variables[4],$variables[5],$variables[6],$variables[7],$variables[8],$variables[9]);
if ( false===$stmtBindResult ) {
die('bind_param() failed: ' . htmlspecialchars($stmt->error));
}
$stmtExecuteResult = $stmt->execute();
if ( false===$stmtExecuteResult ) {
die('execute() failed: ' . htmlspecialchars($stmt->error));
}
else you can use basic PDO. I would use PDO insert with following basic function:
$Query = "INSERT INTO user VALUES (?,?,?,?,?,?,?,?,?,?)";
$Params = array($variables[0],$variables[1],$variables[2],$variables[3],$variables[4],$variables[5],$variables[6],$variables[7],$variables[8],$variables[9]);
$InsertResult = PDOInsert($Query, $Params);
function PDOInsert($Query, $Parameters)
{
try
{
$PDOConnection = new PDO('mysql:host='.DB_HOST.';dbname='.DB_NAME.'', DB_USER, DB_PASS);
$PDOConnection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$Statement = $PDOConnection->prepare($Query);
foreach ($Parameters as $Key => $Val)
$Statement->bindValue($Key+1, $Val);
$Statement->execute();
$PDOConnection = null;
return true;
}
catch(PDOException $e)
{
die('ERROR: ' . $e->getMessage());
return false;
}
}