string validation regular expression validator minimum maximum length compare fields field match

string validation

Live examples:
- String validation

Possible parameters:

'validation' => Array(
  Array(
    'type'    => 'string',
    'minimum' => '2',
    'maximum' => '5',
    'regexp'  => '/^[a-zA-Z]{5,10}$/',
    'equals'  => 'password2', // equals to another field (eg. two passwords)
    'differs'  => 'fieldname', // differs from another field
  )
)