我的php 分页输出数据 全部输出没有按我设定的输出 也就是本来该一页输出5条的 现在全部输出完了

Question

    <?php                        $mysql = new MysqlHelper();                        $mysql->SetDb(DBTO);                        $pageSize = 5;//一页显示个数                        // 查看总共的试题个数                        $sql1 = "select count(Surid) from p_survey";                        $result1 = $mysql->Excute($sql1);                        $row1 = mysql_fetch_array($result1, MYSQL_NUM);                        $count = $row1[0];//共有多少条数据                        $pageCount = ceil($count / $pageSize);//总共显示多少页数                        if (@$_GET["tab1pageIndex"]) {                            $tab1pageIndex = $_GET["tab1pageIndex"];                            // 设置tab1为当前默认的tab                            echo "<script>changeCurrentTabAsDefault(1);</script>";                        } else {                            $tab1pageIndex = 1;//当前页数                        }                        $offset = $pageSize * ($tab1pageIndex - 1);//第多少页if ($tab1pageIndex == 1) echo "首页&nbsp;&nbsp;上一页&nbsp;";                        if ($tab1pageIndex == 1)                                        echo "首页&nbsp;&nbsp;上一页&nbsp;";                                    else                                        echo "<a href='welcome.php?tab1pageIndex=1'>首页</a>                                                <a href='welcome.php?tab1pageIndex=" . ($tab1pageIndex - 1) . "'>上一页</a>&nbsp;&nbsp;";                                    ?>                                    当前 <?php echo $tab1pageIndex; ?>/<?php echo $pageCount; ?>                                    &nbsp;&nbsp;                                    <?php                                    if ($tab1pageIndex == $pageCount)                                        echo "下一页&nbsp;&nbsp;尾页&nbsp;";                                    else                                        echo "<a href='welcome.php?tab1pageIndex=" . ($tab1pageIndex + 1) . "'>下一页</a>                                                <a href='welcome.php?tab1pageIndex=$pageCount'>尾页</a>";                                    ?>