[RESOLVED] validation format

[kingdm]

Hello.

I'm wondering of the solution for a validation regarding this sequence.

MM/DD/YYYY - MM/DD/YYYY

How can I validate if the user input that sequence?

Thanks.

[PHPist]

Are you want to check that second date in a future comparing with first?

[kingdm]

Thanks for your reply PHPist.

Uhm, I'm not planning on comparing the two dates, let's say its just static dates. I just want to valdiate that the user input will be on that format.

[PHPist]

kingdm;10938216 wrote:

Thanks for your reply PHPist.

Uhm, I'm not planning on comparing the two dates, let's say its just static dates. I just want to valdiate that the user input will be on that format.

<?php
  $str = "29/09/2009";
  $is_valid = preg_match("/\d{2, 2}\/\d{2,2}\/\d{4, 4}/", $str );
?>

Mmm?

[kingdm]

Its not working, it always echo 0 even if I try to play with the inputs. Anyway thanks for the reply.

[kingdm]

I just wanna share the code that solves this thread. (credits and huge thanks to NogDog).

<?php 
$string = "06/06/1987 - 12/31/1987";  // the sequence of input

$valid = false; 
if(preg_match('#^\d\d/\d\d/\d{4} - \d\d/\d\d/\d{4}$#', $string)) 
    {           

           $parts = preg_split('#/| - #', $string); 
        if(checkdate($parts[0], $parts[1], $parts[2]) and checkdate($parts[3], $parts[4], $parts[5])) 
               { 
                  $date1 = mktime(0, 0, 0, $parts[0], $parts[1], $parts[2]); 
                  $date2 = mktime(0, 0, 0, $parts[3], $parts[4], $parts[5]); 
                      if($date1 < $date2) 
                          { 
                             $valid = true; 
                          } 
                      else 
                          { 
                             $error = "2nd date is not later than first"; 
                          } 
               } 
           else 
               { 
                  $error = "one or both dates are not valid"; 
               } 
    } 
else 
    { 
           $error = "invalid date range format"; 
    } 

if($valid)
{
   echo "valid date string";
}
else
{
   echo $error;
} 
?>