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strtotime returns -1 for a real date!

Posted on 2006-11-09
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Last Modified: 2012-06-21
I have a class (user) which has a property (users_expiration_date)

In this procedure, strtotime always evaluates to -1, and I don't understand why:

                                                      $xUser = new users;
                                                      $xUser->users_id = $_POST['uid'];
                                                      $xUser->load_me();

                                                      if(isset($_POST['password']))
                                                      {
                                                            echo "Password updated.";
                                                            $xUser->users_pass = md5($_POST['password']);
                                                      }
                                                      if(isset($_POST['xdate']))
                                                      {
                                                            $xUser->users_expiry_date = $_POST['xdate'];
                                                      }
                                                      if(isset($_POST['radioAdmin']))
                                                      {
                                                            $xUser->users_is_admin = $_POST['radioAdmin'];
                                                      }

                                                      $xUser->update_me();

Here is the code for update_me():

    function update_me()
    {
        $sql = "UPDATE `users` SET `users_name` = '$this->users_name', `users_pass` = '$this->users_pass', `users_expiry_date` = FROM_UNIXTIME(". strtotime($this->users_expiry_date)."), `users_is_admin` = '$this->users_is_admin', `contacts_id` = '$this->contacts_id' WHERE `users_id` = '$this->users_id' LIMIT 1";
        $this->execute_query($sql);
    }

Here are the POST values:
User Administration  
Array
(
    [username] => jerri
    [xdate] => 12/31/3000
    [radioAdmin] => N
    [Modules] => Array
        (
            [56] => N
            [26] => N
            [42] => N
            [1] => N
            [40] => N
            [19] => N
            [32] => N
            [8] => N
            [12] => Y
            [7] => Y
            [49] => N
            [24] => N
            [29] => N
            [10] => N
            [30] => N
            [25] => N
            [50] => N
            [28] => N
            [43] => N
            [54] => N
            [21] => N
            [34] => N
            [17] => N
            [47] => N
            [41] => N
            [33] => N
            [14] => N
            [20] => N
            [23] => N
            [9] => N
            [46] => N
            [38] => N
            [53] => N
            [11] => N
            [51] => Y
            [31] => N
            [44] => N
            [52] => N
            [15] => N
            [5] => N
            [55] => Y
            [58] => Y
        )

    [Submit] => Update
    [stage] => 3
    [uid] => 49
)

 Here is user after the values have been assigned:

users Object
(
    [users_id] => 49
    [users_name] => jerri
    [users_pass] => 0fc54732b7e737b5ed770a7335baa398
    [users_expiry_date] => 12/31/3000
    [users_is_admin] => N
    [users_unix_timestamp_xdate] => 0
    [contacts_id] => 2934
)

Here's the resulting SQL that is executed for MySQL:

UPDATE `users` SET `users_name` = 'xxxxx', `users_pass` = '0fc54732b7e737b5ed770a7335baa398', `users_expiry_date` = FROM_UNIXTIME(-1), `users_is_admin` = 'N', `contacts_id` = '2934' WHERE `users_id` = '49' LIMIT 1

Does anyone see why this is not evaluating to a unix timestamp?

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Question by:DrDamnit
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1 Comment
 
LVL 33

Accepted Solution

by:
snoyes_jw earned 2000 total points
ID: 17906411
"The valid range of a timestamp is typically from Fri, 13 Dec 1901 20:45:54 GMT to Tue, 19 Jan 2038 03:14:07 GMT." - http://www.php.net/strtotime

12/31/3000 falls outside that range.
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