original_string: public static function start($value, $prefix)
      {
          $quoted = preg_quote($prefix, '/');
  
          return $prefix.preg_replace('/^(?:'.$quoted.')+/u', '', $value);
      }
code: public static function start($value, $prefix)
      {
          $quoted = preg_quote($prefix, '/');
  
          return $prefix.preg_replace('/^(?:'.$quoted.')+/u', '', $value);
      }
code_tokens: public static function start ( $ value , $ prefix ) { $ quoted = preg_quote ( $ prefix , '/' ) ; return $ prefix . preg_replace ( '/^(?:' . $ quoted . ')+/u' , '' , $ value ) ; }
docstring: Begin a string with a single instance of a given value.
  
  @param  string  $value
  @param  string  $prefix
  @return string
docstring_tokens: Begin a string with a single instance of a given value .