Creating a php file that is supposed to update my employees table in my database called hr$\_$tracker. $```$connect$\_$error$)\{$

die$("$Connection failed: $".$ $conn$->$connect$\_$error$)$;

$\}$

return $conn;

$\}$

$//$ Check if the form is submitted for updating the employees table

if $($$$\_$SERVER$["$REQUEST$\_$METHOD"$]==$ "POST"$)\{$

if $($isset$($$$\_$POST$[\text{'}$update$\text{'}])$ && isset$($$$\_$POST$[\text{'}$empID$\text{'}]))\{$

$conn $=$ connectToDatabase$()$; $//$ Connect to the database

$empID $=$ $conn$->$real$\_$escape$\_$string$($$$\_$POST$[\text{'}$empID$\text{'}])$;

$firstName $=$ $conn$->$real$\_$escape$\_$string$($$$\_$POST$[\text{'}$firstName$\text{'}])$;

$lastName $=$ $conn$->$real$\_$escape$\_$string$($$$\_$POST$[\text{'}$lastName$\text{'}])$;

$address $=$ $conn$->$real$\_$escape$\_$string$($$$\_$POST$[\text{'}$address$\text{'}])$;

$city $=$ $conn$->$real$\_$escape$\_$string$($$$\_$POST$[\text{'}$city$\text{'}])$;

$state $=$ $conn$->$real$\_$escape$\_$string$($$$\_$POST$[\text{'}$state$\text{'}])$;

$zipCode $=$ $conn$->$real$\_$escape$\_$string$($$$\_$POST$[\text{'}$zipCode$\text{'}])$;

$phoneNumber $=$ $conn$->$real$\_$escape$\_$string$($$$\_$POST$[\text{'}$phoneNumber$\text{'}])$;

$email $=$ $conn$->$real$\_$escape$\_$string$($$$\_$POST$[\text{'}$email$\text{'}])$;

$jobID $=$ $conn$->$real$\_$escape$\_$string$($$$\_$POST$[\text{'}$jobID$\text{'}])$;

$salary $=$ $conn$->$real$\_$escape$\_$string$($$$\_$POST$[\text{'}$salary$\text{'}])$;

$hireDate $=$ $conn$->$real$\_$escape$\_$string$($$$\_$POST$[\text{'}$hireDate$\text{'}])$;

$managerID $=$ $conn$->$real$\_$escape$\_$string$($$$\_$POST$[\text{'}$managerID$\text{'}])$;

$departmentID $=$ $conn$->$real$\_$escape$\_$string$($$$\_$POST$[\text{'}$departmentID$\text{'}])$;

$username $=$ $conn$->$real$\_$escape$\_$string$($$$\_$POST$[\text{'}$username$\text{'}])$;

$creationID $=$ $conn$->$real$\_$escape$\_$string$($$$\_$POST$[\text{'}$creationID$\text{'}])$;

if $($isset$($$$\_$FILES$[\text{'}$image$\text{'}])$ && $$\_$FILES$[\text{'}$image$\text{'}][\text{'}$error$\text{'}]==0)\{$

$image $=$ file$\_$get$\_$contents$($$$\_$FILES$[\text{'}$image$\text{'}][\text{'}$tmp$\_$name'$])$;

$\}$ else $\{$

$//$ Handle no file uploaded or an error occurred

$image $=$ null; $//$ Adjust as needed

$\}$

$//$ Add other fields here...

$//$ Use prepared statements to prevent SQL injection

$updateQuery $=$ "UPDATE employees SET firstName$=?,$ lastName$=?,$ address$=?,$ city$=?,$ state$=?,$ zipCode$=?,$ phoneNumber$=?,$ email$=?,$ jobID$=?,$ salary$=?,$ hireDate$=?,$ managerID$=?,$ departmentID$=?,$ username$=?,$ creationID$=?,$ image$=?$ WHERE empID$=?"$;

$stmt $=$ $conn$->$prepare$($$updateQuery$)$;

$stmt$->$bind$\_$param$("$ssssssssdssdissi$",$ $firstName, $lastName, $address, $city, $state, $zipCode, $phoneNumber, $email, $jobID, $salary, $hireDate, $managerID, $departmentID, $username, $creationID, $image, $empID$)$;

if $($$stmt$->$execute$())\{$

echo "Employees table updated successfully";

$\}$ else $\{$

echo "Error updating employees table: $".$ $conn$->$error;

$\}$

$stmt$->$close$()$;

$conn$->$close$()$;

$\}$

$\}$

$//$ Retrieve employees table information from the database

$conn $=$ connectToDatabase$()$; $//$ Connect to the database

$query $=$ "SELECT $*$ FROM employees";

$result $=$ $conn$->$query$($$query$)$;

$?>$