Simple Addition of Variables

[Anon]

In trying to do some elementary math, I am having problems echoing the output of these variables:

$retention = 800$employees;
$retention = number_format($retention);
$prolo = $salaryminute(260*$employees);
$prolo = number_format($prolo);

$tblo = $retention+$prolo;
$tblo = number_format($tblo);

The first four lines produce fine.
$retention outputs "1,600,000"
$prolo outputs "109,200"

All I want to do is have $tblo output these two added. But it ouputs "110".

Where am I going wrong?

[cordex]

Easy one.

Look at your numbers.
$retention is "1,600,000"
$prolo is "109,200"

Take the first cluster of numbers before the first column in each string (1 and 109) and add those together.

There's your 110.

Your problem is you're adding two formatted strings. You shouldn't format them until you are done working with them.

$retention = 800$employees;
$prolo = $salaryminute(260*$employees);
$tblo = $retention+$prolo;
$retention = number_format($retention);
$prolo = number_format($prolo);
$tblo = number_format($tblo)

This should work.

-Ben

[Anon]

Thank you!! Problem solved. I appreciate the help!

Note to self: format variables after functions.

[[deleted]]

I'd change that to:
format variables only for printing.

[cordex]

agreed.