Hello.

I need to create a calculator with php. I did it but I'm having some issues with:

1. If the user fails to enter the Hours Worked, or if the Hours Worked are less than 0, or if the Hours Worked are greather than 80, the following message should be returned: "you must enter hours worked between 0 and 80 to be paid."

2. If the user fails to enter the Hourly Rate, or if the Hourly Rate is less than 7.25, or greater than 100.00, the following message should be returned: "You must enter an hourly rate that is between 7.25 and 100.00 to be paid."

3. If the user fails to enter more than one of the values such as both Hours Worked and Hourly Rate, messages show for each item not entered with the Please fill out the fields as required and submit again message.

4. I need to get the error message under the form, but instead I get it on top of it.

I'll paste here what I have in the code.

Please help!

$page_title = 'Paycheck Calculator';

if ($_SERVER['REQUEST_METHOD'] == 'POST') {

// Minimal form validation:

if (isset($_POST['fname'], $_POST['lname'], $_POST['hworked']) &&

is_numeric($_POST['hworked']) && is_numeric($_POST['hrate'])) {

$overtime ='10';

$fica ='5.65';

$state ='5.75';

$federal ='28.00';

$hworked = '';

$regular_pay = $_POST['hworked'] * $_POST['hrate'];

$overtime_pay = $overtime * 1.5 * $_POST['hrate'];

$gross_pay = $regular_pay + $overtime_pay;

// calculating the tax withhelds

$ficataxwithheld = ($gross_pay * $fica)/100;

$statetaxwithheld = $gross_pay * $state/100;

$federaltaxwithheld = $gross_pay * $federal/100;

$total_taxes = $ficataxwithheld + $statetaxwithheld + $federaltaxwithheld;

$net_pay = $gross_pay - $total_taxes;

// applying number format AFTER claculations

$ficataxwithheld = number_format ($ficataxwithheld, 2);

$statetaxwithheld = number_format ($statetaxwithheld,2);

$federaltaxwithheld = number_format ($federaltaxwithheld, 2);

$regular_pay = number_format ($regular_pay, 2);

$overtime_pay = number_format ($overtime_pay, 2);

$gross_pay = number_format ($gross_pay, 2);

$total_taxes = number_format ($total_taxes, 2);

if ( !empty($_POST['fname']) && !empty($_POST['lname']) && !empty($_POST['hworked']) && !empty($_POST['hrate']) ) {

echo "

";

echo "

";

echo "

";

echo "

";

echo "

";

echo "

";

echo "

";

echo "

";

echo "

";

echo "

";

echo "

";

echo "

";

echo "

";

echo "

";

echo "

";

echo "

Paycheck Calculator
Employee Name	{$_POST['fname']} {$_POST['lname']}
Regular Hours worked (between 0 and 80)	{$_POST['hworked']}
Overtime Hours worked (between 0 and 40)	$overtime
Hourly Rate(between 0 and 100.00)	{$_POST['hrate']}
Regular Pay	$$regular_pay
Overtime Pay	$$overtime_pay
Gross Pay	$$gross_pay
FICA Tax Rate (ex. 5.65)	$fica%
FICA Tax Withheld	$$ficataxwithheld
State Tax Rate (ex. 5.75)	$state%
State Tax Withheld	$$statetaxwithheld
Federal Tax Rate (ex. 20.00)	$federal%
Federal Tax Withheld	$$federaltaxwithheld
Total Taxes	$$total_taxes
Net Pay	$$net_pay

";}

if (!empty($_POST['fname'])) {

$name = $_POST['fname'];

}

else{

$name = NULL;

echo '

You need to enter your first name to be paid!

'; }

if (!empty($_POST['lname'])) {

$name = $_POST['lname']; }

else{

$name = NULL;

echo '

You need to enter your last name to be paid!

'; }

if(!empty($_POST['hworked'])) {

$hworked = $_POST['hworked'];

}

else{

$hworked = NULL;

echo '

Please enter a number between 0 and 80

';

}

if($_POST['hrate'] >= 0 and $_POST['hrate'] <= 100)

{

$hrate= $_POST['hrate'];

}

else{

$hrate = NULL;

echo '

Please enter a number between 0 and 100

';

}

}

}

?>

Use the form to calculate the Regular Pay, Overtime Pay, Gross etc for an employee.

First Name

Last Name

Hours Worked (between 0 and 80)

Hourly Rate (between 0 and 100)