public function regionCompareIgnoreCase( $offseta, $str, $offsetb, $length ) {
		return $this->regionCompare( $offseta, $str, $offsetb, $length, true );
	}
public function regionCompareIgnoreCase( $offseta, $str, $offsetb, $length ) {
		return $this->regionCompare( $offseta, $str, $offsetb, $length, true );
	}
public function regionCompareIgnoreCase ( $ offseta , $ str , $ offsetb , $ length ) { return $ this -> regionCompare ( $ offseta , $ str , $ offsetb , $ length , true ) ; }
Compare two string regions, ignoring case differences.

@access public

@param int $offseta The starting offset of the subregion in this string
@param string $str The string argument
@param int $offsetb The starting offset of the subregion in the string argument
@param int $length The number of characters to compare

@return int the value 0 if regions are equal, 1 or -1.
Compare two string regions ignoring case differences .