php: 2 mysql queries but only 1 is executed - php

Question

I have a class in php that needs to send data from a form to a database. The query is split up in 2 queries bcs half the data needs to be send to an other table in the same database.
Now the problem: When I confirm the form then only the data of the sec query have been send to the database but not the data of the first query.
this is what I have:
(database connection) ...
if (something is empty)
{
Give error.
}
else {
$query = $this->db->prepare("INSERT INTO Table1(coloumn1, coloumn2, coloumn3, coloumn4, coloumn5, coloumn6, coloumn7, coloumn8) VALUES(?, ?, ?, ?, ?, ?, ?, ?)");
$query->bindParam(1, $Val1);
$query->bindParam(2, $Val2);
$query->bindParam(3, $Val3);
$query->bindParam(4, $Val4);
$query->bindParam(5, $Val5);
$query->bindParam(6, $Val6);
$query->bindParam(7, $Val7);
$query->bindParam(8, $Val8);
$query->execute();
$query = $this->db->prepare("INSERT INTO Table2(coloumn1, coloumn2, coloumn3, coloumn4, coloumn5) VALUES(?, ?, ?, ?, ?)");
$query->bindParam(1, $Val1);
$query->bindParam(2, $Val9);
$query->bindParam(3, $Val10);
$query->bindParam(4, $Val11);
$query->bindParam(5, $Val12);
$query->execute();
}
What I have done:
checked database connection
checked table name
some error checks
trying to make a different function for the sec query (but then he
doesn't send anything anymore)
delete the sec query (but it still wont send the first query)
and ofc googling
I think i am doing something wrong with my first query but I don't know what.
Found it misspelled a column name (yes i did check it 2 times but still didn't saw it).

Answer 1

bind_param isn't supposed to be used the way you were using it for mysqli:
mysqli_stmt_bind_param documentation
The first parameters is a hint to PHP about what type of variable you are dealing with (i=>integer, s=> string, etc.)
You basically have to give ALL parameters in one line, using VARIABLES (you can't use constants).
--- SIDE NOTE: ADVANCED ---
If your code doesn't know how many parameters to pass at compile time, you might need to use:
call_user_func_array(array($query,'bind_param'), $all_prm );
where $all_prm is a an array of references to the values, first element being the types.

Answer 2

I believe you used the bind_param method in the wrong way. As stated in http://php.net/manual/en/mysqli-stmt.bind-param.php:
bool mysqli_stmt::bind_param ( string $types , mixed &$var1 [, mixed &$... ] )
So, assuming all your variables are integers, you could bind them in the following way:
$query->bind_param('iiiiiiii', $Val1, $Val2, $Val3, $Val4, $Val5, $Val6, $Val7, $Val8);
Here are the type specification chars:
'i': corresponding variable has type integer
'd': corresponding variable has type double
's': corresponding variable has type string
'b': corresponding variable is a blob and will be sent in packets
Therefore the solution I propose you is:
$query = $this->db->prepare("INSERT INTO Table1(coloumn1, coloumn2, coloumn3, coloumn4, coloumn5, coloumn6, coloumn7, coloumn8) VALUES(?, ?, ?, ?, ?, ?, ?, ?)");
$query->bind_param('iiiiiiii', $Val1, $Val2, $Val3, $Val4, $Val5, $Val6, $Val7, $Val8);
$query->execute();
$query = $this->db->prepare("INSERT INTO Table2(coloumn1, coloumn2, coloumn3, coloumn4, coloumn5) VALUES(?, ?, ?, ?, ?)");
$query->bind_param('iiiii', $Val1, $Val9, $Val10, $Val11, $Val12);
$query->execute();