PHP - Change value of variable before inserting into sql - Without Ajax - php

Question

I have the variable
$sql1 .= "Brukertype";
Which gets information set from an already-filled textbox. It can either have the value Administrator or the value Iskjører.
What is the best way to change these values before inserting them into SQL?
The Administrator value should get changed to the value 1 and Iskjører gets changed to the value 2.
I can't use a select function (dropdown list) on the question because it needs to be enabled/disabled on my command.

Answer 1

This is a reasonable place to use a switch statement. You want a 'marshaling' function, like this:
function marshal_input($input) {
$result = 0;
switch ($input){
case 'Administrator':
$result = 1;
break;
case 'Iskjører':
$result = 2;
break;
case 'SomethingYouHaventThoughtOfYet':
$result = 3;
break;
default:
$result = 0;
break;
}
}
However, the implementation of the marshaling function can be almost anything:
function marshal_input($input) {
$options = array("Administrator" => 1, "Iskjører" =>2);
return $options[$input];
}
The point is that you need some code that maps from the human-readable form to the numerical representation the db needs. Then you just call it like so:
$sql_version = marshal_input($sql1);//Doesn't overwrite the variable
//...or...
$sql1 = marshal_input($sql1);//Note this overwrites the variable.

Answer 2

Since you have stated:
It can eighter have the value "Administrator" or the value "Iskjører"...
we only check whether the value is 'Administrator' or not.
Try this:
$val = 'Administrator'; // user input variable
$sql_val = ($val == 'Administrator') ? 1 : 2;
If value is 'Administrator' set $sql_val to 1, else set $sql_val to 2