有人遇到mysqli的fetch_assoc()方法出错吗？解决方案

有人遇到mysqli的fetch_assoc()方法出错吗？
配置是phpnow5.1.6 :windowsXP + php5.2.14 + apache2.2.6 + MySQL5.1.50

在用mysqli类的fetch_assoc()时，Apache好像歇菜了。见如下代码：

PHP code

<!--

Code highlighting produced by Actipro CodeHighlighter (freeware)
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-->while($row =$rs->fetch_assoc())
{
echo "<tr>";
echo "<td>" . $row['FirstName'] . "</td>";
echo "<td>" . $row['LastName'] . "</td>";
echo "<td>" . $row['Age'] . "</td>";
echo "<td>" . $row['HomeTown'] . "</td>";
echo "<td>" . $row['Job'] . "</td>";
echo "</tr>";
}

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PHP code

<?php $mysqli = new mysqli("localhost", "my_user", "my_password", "world");

/* check connection */
if (mysqli_connect_errno()) {
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
}

$query = "SELECT Name, CountryCode FROM City ORDER by ID LIMIT 3";
$result = $mysqli->query($query);

/* numeric array */
$row = $result->fetch_array(MYSQLI_NUM);
printf ("%s (%s)\n", $row[0], $row[1]);

/* associative array */
$row = $result->fetch_array(MYSQLI_ASSOC);
printf ("%s (%s)\n", $row["Name"], $row["CountryCode"]);

/* associative and numeric array */
$row = $result->fetch_array(MYSQLI_BOTH);
printf ("%s (%s)\n", $row[0], $row["CountryCode"]);

/* free result set */
$result->close();

/* close connection */
$mysqli->close();
?>
<br><font color="#e78608">------解决方案--------------------</font><br>没有错误信息吗?<br>看样子是没有打开错误显示功能
<br><font color="#e78608">------解决方案--------------------</font><br>
那只能是你的关联字段没有和数据库中的对应上。<br>实在没办法，用预编译处理吧：<br>

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PHP code

$sql = "SELECT mid,movName,movType,movStar,movImg,movPlay,director,producter FROM mov_film";
        $stmt = $this->mysqli->prepare($sql);
        $stmt->execute();
        $stmt->store_result();
         $stmt->bind_result($mid,$movName,$movType,$movStar,$movImg,$movPlay,$director,$producter);
        $rows = $stmt->affected_rows;
        if ($rows > 0){
            $arrMovie = array();
            while($stmt->fetch()){
                //将文件名从路径中取出并转换为相对路径
                $movImg = "../../images/".basename($movImg);
                //截取文件名
                $arrStr = explode(".",basename($movPlay));
                $movPlay = "../../videos/".$arrStr[0];

                $arr = array(
                    "mid" => $mid,
                    "movName" => $movName,
                    "movType" => $movType,
                    "movStar" => $movStar,
                    "movImg" => $movImg,
                    "movPlay" => $movPlay,
                    "director" => $director,
                    "producter" => $producter
                );
                array_push($arrMovie,$arr);
            }
            return $arrMovie;
        } <div class="clear">
                 
              
              
        
            </div>

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