public function regionMatchesIgnoreCase( $offseta, $str, $offsetb, $length ) {
		return $this->regionCompareIgnoreCase( $offseta, $str, $offsetb, $length ) == 0;
	}
public function regionMatchesIgnoreCase( $offseta, $str, $offsetb, $length ) {
		return $this->regionCompareIgnoreCase( $offseta, $str, $offsetb, $length ) == 0;
	}
public function regionMatchesIgnoreCase ( $ offseta , $ str , $ offsetb , $ length ) { return $ this -> regionCompareIgnoreCase ( $ offseta , $ str , $ offsetb , $ length ) == 0 ; }
Tests if two string regions are equal, 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 bool true if the regions match.
Tests if two string regions are equal ignoring case differences .