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   1  <?php
   2  
   3  /**
   4  * @package   s9e\TextFormatter
   5  * @copyright Copyright (c) 2010-2021 The s9e authors
   6  * @license   http://www.opensource.org/licenses/mit-license.php The MIT License
   7  */
   8  namespace s9e\TextFormatter\Parser\AttributeFilters;
   9  
  10  class TimestampFilter
  11  {
  12      /**
  13      * Filter a timestamp value
  14      *
  15      * @param  string $attrValue Original value
  16      * @return mixed             Filtered value, or FALSE if invalid
  17      */
  18  	public static function filter($attrValue)
  19      {
  20          if (preg_match('/^(?=\\d)(?:(\\d+)h)?(?:(\\d+)m)?(?:(\\d+)s)?$/D', $attrValue, $m))
  21          {
  22              $m += [0, 0, 0, 0];
  23  
  24              return intval($m[1]) * 3600 + intval($m[2]) * 60 + intval($m[3]);
  25          }
  26  
  27          return NumericFilter::filterUint($attrValue);
  28      }
  29  }