php – 这个MySQL语句有什么问题？

$my->query("UPDATE ideas 
               SET category = 'Document Options',category_id = '4',status = 'Released',status_id = '3',title = 'Support for iPad',idea = 'Add support for iPad. Allow uploads and downloads via the anonymous App for iPhone and iPad.',release = '0',release_date = ''
             WHERE id = '225'");

$my是一个包含许多其他mysql命令的自定义类.为了证明它工作正常,它适用于以下查询：

$my->query("UPDATE idea_feedback
               SET Feedback = '$feedback',Date = '$fdate' 
             WHERE ID = '$i'");