My lookup table does not work

[russia5]

Hello, I have a lookup table that I have a problem with someplace and I cannot figure out exactly where it is.

Here is the code

<?php 

DATABASE CONNECTION HERE

$lookup = array("January" => '01', "February" => '02', "March" => '03', "April" => '04', "May" => '05', "June" => '06', "July" => '07', "August" => '08', "September" => '09', "October" => '10', "November" => '11', "December" => '12'); 
// use month names on your form 

$month = $_POST["age_mth"]; // the name 
$monthnum = $lookup[$month]; // the number

$query = "INSERT INTO `subdomain_submission` (age_month) VALUES ('{$monthnum}');";  


print "month = $month";
print "monthnum = $monthnum";


?> 

the print function reads this

month = monthnum = 

so, the correct reading should be

month = October monthnum = 10

any ideas. Thanks for the consideration.

[NogDog]

It would appear that $POST["age_mth"] is empty. Check the form that is calling this script and make sure the applicable field name exactly matches the index you are using with $POST, including upper-/lower-case.