Date validation

Anon

Anyone have any experience with date validation?
I want to accept a date like this: dd/mm/yy (including the slashes) making sure that the user enters a date later than the current date. I can cobble something together but it\'s not too smart.....

Thanks for any help.

Chris

brainiac

<?php
$current = time();
$entered = strtotime("16/03/01");
if ($entered < $current) {
echo "Error! You cannot enter a date in the past.";
exit;
}
elseif ($entered => $current) {
echo "The date entered are equal to or later than the current date";
exit;
}
?>

Anon

Here's a function that extracts each element in the string into day, month, year, then uses PHP's checkdate() function to validate (It's set for mm/dd/yy, but you can easily modify for your purpose of dd/mm/yy:
CHECK IF DATE IS VALID

/ check if a date in the format "MM/DD/YYYY" is valid.
returns "Y" if valid, "N" if invalid /
function isValidDateVip($value) {
$strData = strtok($value, "/");
$intCount = 1;
while ($strData) {
if ($intCount == 1) {
$tmpmonth = $strData;
}
if ($intCount == 2) {
$tmpday = $strData;
}
if ($intCount == 3) {
$tmpyear = $strData;
}
$intCount = $intCount + 1;
$strData = strtok("/");
} // while()
if (checkdate($tmpmonth,$tmpday,$tmpyear)) {
return "Y";
} else {
return "N";
}
}

/ sample use: /
$mydate = "2/29/2001";
if (isValidDateVip($mydate) == "Y") {
//is valid
} else {
//is invalid
}
*/

Chris Bulmer wrote:

Anyone have any experience with date validation?

I want to accept a date like this: dd/mm/yy (including the slashes) making sure that the user enters a date later than the current date. I can cobble something together but it\'s not too smart.....

Thanks for any help.

Chris

Anon

Thanks for that - I did actually manage to solve the problem using drop down lists.

However, this function will almost certainly come in useful in teh future.

I'll save it definately.

Thank you.

Chris

Anon

how did you validate that drop down to acknowledge current date or beyond

Anon

I submitted the information using a form tag - i.e. the form called another PHP program from where I validated the date using normal means e.g. if Month = Sept and Day > 30 then Print 'invalid date'

Hope this helps

Chris

Anon

hey thanks alot a bit of direction always helps