选择语言 :

Module_Database_Result::offsetExists

Implements [ArrayAccess::offsetExists], determines if row exists.

if (isset($result[10])) { // Row 10 exists }

boolean Module_Database_Result::offsetExists( )

File: ./modules/database/result.class.php

public function offsetExists($offset)
{
    return ($offset >= 0 && $offset < $this->count());
}