original_string: public function lt( $value1, $value2 )
      {
          $value1 = $this->getIdentifier( $value1 );
          $value2 = $this->getIdentifier( $value2 );
          return "{$value1} < {$value2}";
      }
code: public function lt( $value1, $value2 )
      {
          $value1 = $this->getIdentifier( $value1 );
          $value2 = $this->getIdentifier( $value2 );
          return "{$value1} < {$value2}";
      }
code_tokens: public function lt ( $ value1 , $ value2 ) { $ value1 = $ this -> getIdentifier ( $ value1 ) ; $ value2 = $ this -> getIdentifier ( $ value2 ) ; return "{$value1} < {$value2}" ; }
docstring: Returns the SQL to check if one value is less than another value.
  
  Example:
  <code>
  $q = ezcDbInstance::get()->createSelectQuery();
  $q->select( '*' )->from( 'table' )
  ->where( $q->expr->lt( 'id', $q->bindValue( 1 ) ) );
  </code>
  
  @param string $value1 logical expression to compare
  @param string $value2 logical expression to compare with
  @return string logical expression
docstring_tokens: Returns the SQL to check if one value is less than another value .