public static function getValidClassPrefixes() {
		$validPrefixes = array('tx_', 'Tx_', 'user_', 'User_');
		if (
			isset($GLOBALS['TYPO3_CONF_VARS']['SYS']['additionalAllowedClassPrefixes'])
			&& is_string($GLOBALS['TYPO3_CONF_VARS']['SYS']['additionalAllowedClassPrefixes'])
		) {
			$validPrefixes = array_merge(
				$validPrefixes,
				t3lib_div::trimExplode(',', $GLOBALS['TYPO3_CONF_VARS']['SYS']['additionalAllowedClassPrefixes'])
			);
		}
		return $validPrefixes;
	}
public static function getValidClassPrefixes() {
		$validPrefixes = array('tx_', 'Tx_', 'user_', 'User_');
		if (
			isset($GLOBALS['TYPO3_CONF_VARS']['SYS']['additionalAllowedClassPrefixes'])
			&& is_string($GLOBALS['TYPO3_CONF_VARS']['SYS']['additionalAllowedClassPrefixes'])
		) {
			$validPrefixes = array_merge(
				$validPrefixes,
				t3lib_div::trimExplode(',', $GLOBALS['TYPO3_CONF_VARS']['SYS']['additionalAllowedClassPrefixes'])
			);
		}
		return $validPrefixes;
	}
public static function getValidClassPrefixes ( ) { $ validPrefixes = array ( 'tx_' , 'Tx_' , 'user_' , 'User_' ) ; if ( isset ( $ GLOBALS [ 'TYPO3_CONF_VARS' ] [ 'SYS' ] [ 'additionalAllowedClassPrefixes' ] ) && is_string ( $ GLOBALS [ 'TYPO3_CONF_VARS' ] [ 'SYS' ] [ 'additionalAllowedClassPrefixes' ] ) ) { $ validPrefixes = array_merge ( $ validPrefixes , t3lib_div :: trimExplode ( ',' , $ GLOBALS [ 'TYPO3_CONF_VARS' ] [ 'SYS' ] [ 'additionalAllowedClassPrefixes' ] ) ) ; } return $ validPrefixes ; }
Returns all valid class prefixes.

@return array Array of valid prefixed of class names
Returns all valid class prefixes .