PHP服务器端对将来日期与今天日期的比较进行验证

Question

My database has a column, for example, named

expected_event_date data type of which is set to timestamp and it's attribute is CURRENT_TIMESTAMP

Users input expected future event date through a form.

How shall I validate the future date in comparison with current date in this case? The server should omit an error in case users input past date.

I'm looking for something like,

$error = "invalid date" 
if ($_POST['expected_event_date'] < today's date only but not time ) {
echo $error;    
}

Any idea?

Answer 1

Here is a function for you :)

$error = "invalid date" 
if ($this->isValidDate($_POST['expected_event_date'],'Y-m-d')) {
echo $error;    
}

public function isValidDate($date,$dateFormat){

    $date = trim($date);
    $time = strtotime($date);

    if(date($dateFormat, $time) < date('Y-m-d')){
        return true;
    }
    else {
        return false;
    }
}