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ip4) { $this->_loadRegex(); } if (preg_match('#^' . $this->ip4 . '$#s', $aIP)) { return $aIP; } return false; } /** * Lazy load function to prevent regex from being stuffed in * cache. */ protected function _loadRegex() { $oct = '(?:25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]|[0-9])'; // 0-255 $this->ip4 = "(?:{$oct}\\.{$oct}\\.{$oct}\\.{$oct})"; } } // vim: et sw=4 sts=4