Urgent for Project ! Get FORM text fields array to php page

Hi everyone! I am a college student and work on a school project.
But I am getting frustrated :cry: when transferring all 5 textfields called "particular", in the entry_sales.php (that is the data entry page)

.....

When I use $date=$_POST['particular'] in validate_sales.php; to retrieve the "particular" array in entry_sales.php and use print $date[0]
to check the actual data stored in the variable array $date. But no data output is printed.....WHAT 's wrong with my codes? I find many PHP reference sites and it seems that the syntax to get FORM values is
correct, ie $_POST['name of the input']...

Is there any other methods to get the FORM array values?
Anyone can help me to solve the problem?

I would be very appreciate yr kindness help. :cry:

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