Dear wise Monks,
I would like to ask you the following:
I have a PHP page that calls a Perl script to execute locally, and passes a number of arguments to it.
The arguments passed are:
1) input file
2) number of sequences in the input file
3) a text string
4) an indication if a textbox is selected or not by the user
5) the same as #4

The call of Perl script is made by PHP exec function:
exec ("perl Whole_Program.pl $input_file $seqs_number $prior_info $run
+_mode $txtbox1 $txtbox2", $res_total, $ret);

[download]
My problem has to do with #4 and #5. If the user has selected both text boxes, then the argument for $txtbox1 and $txtbox2 is 'on'.
However, if the user selects, say, only the second txtbox, then there is no value for $txtbox1 variable, because the @ARGV array contains 5 elements instead of 6.Is there a way to correct this? Because, if the user does not select one of the textboxes, then, the argument is not passed to the perl script.

In reply to Problem with getting the correct arguments for my local Perl script by Anonymous Monk

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