original_string: protected function lowercase( array $source )
      {
      	$result = array();
  
      	foreach ($source as $key => $value )
      		$result[strtolower($key)] = $value;
  
      	return $result;
      }
code: protected function lowercase( array $source )
      {
      	$result = array();
  
      	foreach ($source as $key => $value )
      		$result[strtolower($key)] = $value;
  
      	return $result;
      }
code_tokens: protected function lowercase ( array $ source ) { $ result = array ( ) ; foreach ( $ source as $ key => $ value ) $ result [ strtolower ( $ key ) ] = $ value ; return $ result ; }
docstring: Lowercase all array keys to conform default Database behaviour
  
  @param array(string=>mixed) $source
  @return array
docstring_tokens: Lowercase all array keys to conform default Database behaviour