Date Validation in php

To check that enter date is in valid format in php by using validCurrentDate() function

function validCurrentDate($date){

//replace / with - in the date

$date = strtr($date,'/','-');

//explode the date into date,month and year

$datearr = explode('-', $date);

//count that there are 3 elements in the array

if(count($datearr) == 3){

list($d, $m, $y) = $datearr;

/*checkdate - check whether the date is valid. strtotime - Parse about any English textual

datetime description into a Unix timestamp. Thus, it restricts any input before 1901 and after 2038, i.e., it invalidate outrange dates like 01-01-2500. preg_match - match the pattern*/

if(checkdate($m, $d, $y) && strtotime("$y-$m-$d") && preg_match('#\b\d{2}[/-]\d{2}[/-]\d{4}\b#', "$d-$m-$y"))

{

/*echo "valid date";*/

return TRUE;

}

else {

/*echo "invalid date";*/

return FALSE;

}

}

else {

/*echo "invalid date";*/

return FALSE;

}

/*echo "invalid date";*/

return FALSE;

}

?>