Question: Below is how I previously verified dates. I also had my own functions to convert date formats, however, now am using PHP's DateTime class so no longer need them. How should I best verify a valid date using DataTime? Please also let me know whether you think I should be using DataTime in the first place. Thanks

PS. I am using Object oriented style, and not Procedural style.

```
static public function verifyDate($date)
{
  //Given m/d/Y and returns date if valid, else NULL.
  $d=explode('/',$date);
  return ((isset($d[0])&&isset($d[1])&&isset($d[2]))?(checkdate($d[0],$d[1],$d[2])?$date:NULL):NULL);
}

```

Answer: 
Try this:

```
  function is_valid_date($date,$format='dmY')
  {
    $f = DateTime::createFromFormat($format, $date);
    $valid = DateTime::getLastErrors();         
    return ($valid['warning_count']==0 and $valid['error_count']==0);
  }

```
```
$date[] = '20/11/2569';     
$date[] = 'lksdjflskdj'; 
$date[] = '11/21/1973 10:20:30';
$date[] = '21/11/1973 10:20:30';
$date[] = " ' or uid like '%admin%"; 
foreach($date as $dt)echo date('Y-m-d H:i:s', strtotime($dt))."\n";

```

Output

```
1970-01-01 05:30:00
1970-01-01 05:30:00
1970-01-01 05:30:00
1973-11-21 10:20:30
1970-01-01 05:30:00
1970-01-01 05:30:00

```