I made an external page to print
And I have a master table and a sub-table of details
When using $ ID = $ _GET ['masterkey1'];
Does not read the current page Example ID 17 Reads 15 What is the correct way to use $ _GET


<?php
require_once("include/dbcommon.php");
$ID= $_GET['masterkey1'];
$sql ="SELECT
`employee_information`.`ID`,
`employee_information`.`name`,
`employee_information`.`Workplace`,
`contractors`.`Installment`,
`contractors`.`Method_Payment`,
`contractors`.`date_payment`,
`contractors`.`ID` AS `ID1`
FROM `employee_information`
INNER JOIN `contractors` ON `employee_information`.`ID` = `contractors`.`ID_employees`and `employee_information`.`ID`='".$ID."'
";
$results = CustomQuery($sql);
$data = db_fetch_array($results);
$ID1 = $data['ID1'];
$name = $data['name'];
$Installment = $data['Installment'];
$Specialization = $data['Specialization'];
$date_payment = $data['date_payment'];
mysqli_close($con);
?>
Please help and thanks everyone