function date_range_valid in Date 8

Same name and namespace in other branches

1. 6.2 date_api.module \date_range_valid()
2. 7.3 date_api/date_api.module \date_range_valid()
3. 7 date_api/date_api.module \date_range_valid()
4. 7.2 date_api/date_api.module \date_range_valid()

Tests validity of a date range string.

Parameters

string $string: A min and max year string like '-3:+1'a.

Return value

bool TRUE if the date range is valid, FALSE otherwise.

2 calls to date_range_valid()

DateAPITest::testDateAPI in date_api/lib/Drupal/date_api/Tests/DateAPITest.php

@todo.

date_year_range_validate in date_api/date_api_elements.inc

Element validation function for the date_year_range form element.

File

date_api/date_api.module, line 403

This module will make the date API available to other modules. Designed to provide a light but flexible assortment of functions and constants, with more functionality in additional files that are not loaded unless other modules specifically include them.

Code

function date_range_valid($string) {
  $matches = preg_match('@^(\\-[0-9]+|[0-9]{4}):([\\+|\\-][0-9]+|[0-9]{4})$@', $string);
  return $matches < 1 ? FALSE : TRUE;
}