Validation with Regular Expression

Some useful Validation with Regular Expression here

• Not empty = '/.+/'
• Numbers [0-9] = '/^[-+]?\\b[0-9]*\\.?[0-9]+\\b$/'
• A valid email address = '/\\A(?:^([a-z0-9][a-z0-9_\\-\\.\\+]*)@([a-z0-9][a-z0-9\\.\\-]{0,63}\\.
  (com|org|net|biz|info|name|net|pro|aero|coop|museum|[a-z]{2,4}))$)\\z/i'
• A valid year (1000-2999) = '/^[12][0-9]{3}$/'
• Credit Card : 'amex' => '/^3[4|7]\\d{13}$/'
  'bankcard' => '/^56(10\\d\\d|022[1-5])\\d{10}$/'
  'diners' => '/^(?:3(0[0-5]|[68]\\d)\\d{11})|(?:5[1-5]\\d{14})$/'
  'disc' => '/^(?:6011|650\\d)\\d{12}$/'
  'electron' => '/^(?:417500|4917\\d{2}|4913\\d{2})\\d{10}$/'
  'enroute' => '/^2(?:014|149)\\d{11}$/'
  'jcb' => '/^(3\\d{4}|2100|1800)\\d{11}$/'
  'maestro' => '/^(?:5020|6\\d{3})\\d{12}$/'
  'mc' => '/^5[1-5]\\d{14}$/'
  'solo' => '/^(6334[5-9][0-9]|6767[0-9]{2})\\d{10}(\\d{2,3})?$/'
  'switch' => '/^(?:49(03(0[2-9]|3[5-9])|11(0[1-2]|7[4-9]|8[1-2])|36[0-9]{2})\\d{10}(\\d{2,
  3})?)|(?:564182\\d{10}(\\d{2,3})?)|(6(3(33[0-4][0-9])|759[0-9]{2})\\d{10}(\\d{2,3})?)$/'
  'visa' => '/^4\\d{12}(\\d{3})?$/'
  'voyager' => '/^8699[0-9]{11}$/'
  'fast' => '/^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|6011[0-9]{12}|3(?:0[0-5]|[68][0-9])
  [0-9]{11}|3[47][0-9]{13})$/'
• url = '/^(?:(?:https?|ftps?|file|news|gopher):\\/\\/)?(?:(?:(?:25[0-5]|2[0-4]\d|(?:(?:1\d)?
  |[1-9]?)\d)\.){3}(?:25[0-5]|2[0-4]\d|(?:(?:1\d)?|[1-9]?)\d)
  |(?:[0-9a-z]{1}[0-9a-z\\-]*\\.)*(?:[0-9a-z]{1}[0-9a-z\\-]{0,56})\\.(?:[a-z]{2,6}|
  [a-z]{2}\\.[a-z]{2,6})
  (?::[0-9]{1,4})?)(?:\\/?|\\/[\\w\\-\\.,\'@?^=%&:;\/~\\+#]*[\\w\\-\\@?^=%&\/~
  \\+#])$/i'

i collected some source ... try..