I'm new here, but may i ask why you have your arrays like this?
$drug_array[0] = "Rohypnol";
$drug_array[1] = "Valium";
$drug_array[2] = "Mcat";
$drug_array[3] = "Cannabis";
$drug_array[4] = "Speed";
$drug_array[5] = "Xanax";
$drug_array[6] = "MDMA";
$drug_array[7] = "Cocaine";
$drug_array[8] = "Heroin";
$drug_price[0] = "100";
$drug_price[1] = "250";
$drug_price[2] = "500";
$drug_price[3] = "750";
$drug_price[4] = "1500";
$drug_price[5] = "2500";
$drug_price[6] = "5000";
$drug_price[7] = "10000";
$drug_price[8] = "20000";
The numbers aren't needed.
$drug_array = array();
$drug_array[] = "Rohypnol";
$drug_array[] = "Valium";
$drug_array[] = "Mcat";
$drug_array[] = "Cannabis";
$drug_array[] = "Speed";
$drug_array[] = "Xanax";
$drug_array[] = "MDMA";
$drug_array[] = "Cocaine";
$drug_array[] = "Heroin";
$drug_price = array();
$drug_price[] = 100;
$drug_price[] = 250;
$drug_price[] = 500;
$drug_price[] = 750;
$drug_price[] = 1500;
$drug_price[] = 2500;
$drug_price[] = 5000;
$drug_price[] = 10000;
$drug_price[] = 20000;
Also don't see the point in two arrays you can combine both of them like this.
$drugs = array();
$drugs[] = array('name' => "Rohypnol", 'price' => 100);
$drugs[] = array('name' => "Valium", 'price' => 250);
$drugs[] = array('name' => "Mcat", 'price' => 500);
$drugs[] = array('name' => "Cannabis", 'price' => 750);
$drugs[] = array('name' => "Speed", 'price' => 1500);
$drugs[] = array('name' => "Xanax", 'price' => 2500);
$drugs[] = array('name' => "MDMA", 'price' => 5000);
$drugs[] = array('name' => "Cocaine", 'price' => 10000);
$drugs[] = array('name' => "Heroin", 'price' => 20000);
Either that or do something like this.
$drugs = array();
$drugs['Rohypnol'] = array('price' => 100);
You can do the rest. :)
