function fapi_validation_rule_ipv4 in Form API Validation 6

Same name and namespace in other branches

1. 7.2 fapi_validation.module \fapi_validation_rule_ipv4()
2. 7 fapi_validation.module \fapi_validation_rule_ipv4()

1 string reference to 'fapi_validation_rule_ipv4'

fapi_validation_fapi_validation_rules in ./fapi_validation.module

Implementation of hook_fapi_validation_rules

File

./fapi_validation.module, line 255

Code

function fapi_validation_rule_ipv4($value) {
  $pattern = '/^([1-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])' . '(\\.([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])){3}$/';
  return (bool) preg_match($pattern, $value);
}