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How to check if date is valid in perl?

Posted on 2012-03-28
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Last Modified: 2012-03-28
My date format is dd/mm/yyyy

This date should return an error:  30/31/2009

How can I check this date and return that it does not exist.
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Question by:dmalovich
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4 Comments
 
LVL 31

Expert Comment

by:farzanj
ID: 37779063
Try
use DateTime::Format::ISO8601;
eval {
    $date = DateTime::Format::ISO8601->parse_datetime("20061730");
};
if ( $@ ) { print "ERROR: date not valid" };

Open in new window

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Author Comment

by:dmalovich
ID: 37779099
What does "20061730" represent?
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LVL 31

Accepted Solution

by:
farzanj earned 2000 total points
ID: 37779124
That is a date in YYYYMMDD format.  
You can get it like

my $date = '30/31/2009';
my ($dd, $mm, $yyyy) = $date =~ m{(\d\d)/(\d\d)/(\d\d\d\d)};

my $yyyymmdd = "$yyyy$mm$dd";

You can also write test conditions yourself as well
0
 

Author Closing Comment

by:dmalovich
ID: 37779376
Thanks.
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