令牌验证和到期

Question

I'm trying the set up a user registration system that creates a token that expires after 48 hours (2 days). I attempted to program this but to no avail. When I test the code I get this error

A PHP Error was encountered
Severity: Error
Message: Class 'TimeDate' not found
Filename: models/User_model.php
Line Number: 58

Below is the code

    public function isTokenValid($token)
{
    $q = $this->db->get_where('tokens', array('token' => $token), 1);        
    if($this->db->affected_rows() > 0){
        $row = $q->row();             

        $created = $row->created;
        $createdTS = strtotime($created);
        $expiredate = new TimeDate('Y-m-d'); 
        //$todayTS = strtotime($today);
        $expiredate->add(new DateInterval('P2D'));
        if($createdTS != $expiredate){
            return false;
        }

        $user_info = $this->getUserInfo($row->user_id);
        return $user_info;

    }else{
        return false;
    }

}  

Answer 1

you could also use strtotime()

Assuming:

// the timestamp the token was created
$created = $row->created;

Since the token will expire after 48 hours, we need to add 48 hours to date variable $created

$expireDate = date("Y-m-d H:i:s", strtotime($created . " + 48 hours"));

If you only want the date part and not the time, you can omit the H:i:s
You can now compare the $expireDate to today's timestamp.

$today = date("Y-m-d H:i:s");
if (strtotime($today) > strtotime($expire)) {
    echo "expired";
} else {
    echo "not yet";
}