Ken Tozier wrote:
Hi

I wrote a serialization function to turn arbitrary PHP variables into Macintosh plist compatible XML but see that there is no "is_date" tester as there is for bool, object, array etc. Is there a relatively simple (and robust) way to detect if a variable is a date? For example:

$person = array('name'=>'bob', 'sex'=>'male', 'date_of_birth'=> $someDateHere);

Thanks for any help

Ken

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Here is my suggestion. You COULD use strtotime() and try and have PHP see if it recognizes the input string as a date time stamp or something.

Live example
http://www.cmsws.com/examples/php/is_date.php

source

<pre><?php

function is_date($in) {
        return (boolean) strtotime($in);
}

$dates = array(
                'tomorrow',
                'yesterday',
                'next week',
                'last year',
                'April 1st',
                'December 23, 1999 4pm',
                );

foreach ( $dates AS $row ) {
        echo "Time is: ".date('c', strtotime($row));
        echo " {$row} is ";
        var_dump(is_date($row));
}
        

?>

--
Jim Lucas

   "Some men are born to greatness, some achieve greatness,
       and some have greatness thrust upon them."

Twelfth Night, Act II, Scene V
    by William Shakespeare

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