PHP

datetime validation in laravel

  return [
        'deadline' => 'required|date_format:Y-m-d H:i:s|after_or_equal:today',
    ];

Date time format for laravel validation

 $request->validate([
        'start_date' => 'date_format:d/m/Y',
        'end_date' => 'date_format:d/m/Y'
    ]);

laravel date validation

'dob' => 'required|date_format:Y-m-d|after_or_equal:1920-01-01'

datetime validation in laravel

  return [
        'deadline' => 'date_format:Y-m-d H:i:s'
    ];

Laravel validation date

'start_date' => 'required|date|after:tomorrow'

laravel validate date

 'day'            =>  'required|date',

laravel validation date time format

public function validateDate($attribute, $value)
 {
   if ($value instanceof DateTimeInterface) {
     return true;
   }

   if ((! is_string($value) && ! is_numeric($value)) || strtotime($value) === false) {
     return false;
   }

   $date = date_parse($value);

   return checkdate($date['month'], $date['day'], $date['year']);
 }

############## OR ###################

public function validateDateFormat($attribute, $value, $parameters)
{
  if (! is_string($value) && ! is_numeric($value)) {
    return false;
  }

  $format = $parameters[0];

  $date = DateTime::createFromFormat('!'.$format, $value);

  return $date && $date->format($format) == $value;
}