Limit by age

[mdo10025]

I have a form page where I want only those who are 16 of age or older to fill out. Currently I have the following:

if ($arrApp[$FIELDNAMES['NAME_DOB']] <= '1991-12-31' ) {
         array_push ($arrErrors, $ERR_DOB);

<tr><td><b><font color="#990000">Date of Birth:</b></font><br />
<span>(Use format: MM/DD/YYYY)</span></td>
<td align="left">
<input type="text" name="<? echo $FIELDNAMES['NAME_DOB']; ?>" size="20" maxlength="16" value="<? echo $arrApp[$FIELDNAMES['NAME_DOB']]; ?>">
</td></tr>

However, this produces an error no matter what date I put in. Am a newbie and not sure what I'm missing. Any help/pointer would be greatly appreciated.

[scoppc]

you should get current year using the date() function.

$curryear=date("Y");
$maxyear=$curryear-16;

then substracted by 16.
If the year of birth entered is bigger than $maxyear, output error.

[NogDog]

$dobUnixtime = strtotime($arrApp[$FIELDNAMES['NAME_DOB']]);
if($dobUnixtime) === false)
{
   // invalid date entered
}
elseif(strtotime('+ 16 years', $dob) > time())
{
   // less than 16 years old
}
else
{
   // looks like we're good to go
}