php - 如果超过24小时，则使用当前时间验证存储在数据库中的时间戳

Question

The title says it all.. I am not sure what is wrong with my code.. But it didn't go well as i want to

<?php
//test this
$query = odbc_exec($conn, "SELECT * FROM changepass_req WHERE reqid = 1");
$reqdate = odbc_result($query, 'req_date');
$reqdatex = strtotime($reqdate);
$timenow = date("Y-m-d H:i:s");
    $timenowx = strtotime($timenow);

    if($timenowx <= $reqdatex + 86400) {
    //Less than 24 hours
    echo'Go a head, its not a day passed yet';
    }
    else {
    //More than 24 hours
echo'Sorry, this request is expired!';
    }

?>

The req_date that's in the database is in varchar of datatype. Thanks for the help in advance

EDIT : ALSO the req_date data's are in this format (Ymd H:i:s)

EDIT 2 : The return of var_dump($reqdatexx) looked like this in my page : int(1370855859)

EDIT 3 : Here's the concept i want.. If Database time is before OR WITHIN 24 hours of the CURRENT TIME = return true ELSE // if the Database time is BEYOND or PASSED 24 hours of the CURRENT TIME = return false

or , if Database time = 2013 6/8 5:02pm AND Current time = 2013 6/9 5:01pm = return TRUE else //Database time = 2013 g/6 5:02pm AND Current time = 2013 6/9 5:03pm = return FALSE

Answer 1

Hi I am not sure what is exactly you wanted, but to me it seems like you are comparing time now to second.$timenow will return current date and time in following format.

mysql> SELECT NOW();
    -> '2007-12-15 23:50:26'
mysql> SELECT NOW() + 0;
    -> 20071215235026.000000

I suggest you do the following.

Test if they are in the same date, if they are echo sorry

If not then Use the function datediff

mysql> SELECT DATEDIFF('2007-12-31 23:59:59','2007-12-30');
    -> 1
mysql> SELECT DATEDIFF('2010-11-30 23:59:59','2010-12-31');
    -> -31

If it is greater than 1 then you have more than 24 hour, if it is 1 then to be safe just strip the time part from both the date using extract and then compare if the current time is greater in that case you will have more than 24 hour.

Example: mysql> SELECT DATEDIFF('2007-12-31 23:59:59','2007-12-30 22:50:50'); -> 1

In here it return 1 though it is not 24 hour so compare 23:59:59 and 22:50:50 as 22:50:50 is smaller it is not 24 hour but if we have

mysql> SELECT DATEDIFF('2007-12-31 21:59:59','2007-12-30 22:50:50');
    -> 1 

In here compare 21:59:59 and 22:50:50. As 22:50:50 is greater we have more than 24 hour.

Please read this for details http://dev.mysql.com/doc/refman/5.1/en/date-and-time-functions.html

Answer 2

If you want to check, that $reqdatex is inside +-24 hours interval from now, use this condition:

<?php

//Mon, 10 Jun 2013 09:17:39 GMT
$reqdatex = 1370855859;
$timenowx = time();

if(($reqdatex <= $timenowx + 86400) and ($reqdatex >= $timenowx - 86400)) {
    //$reqdatex is inside now +- 24 hours interval
    echo'Go ahead';
}
else {
    //not inside the interval
    echo'Sorry';
}