PHP MySQL脚本出错了

Question

I'm working on a site and created this experimental script which populates a category menu dynamically based on the database entry.

It worked for a day and then suddenly stopped. I changed my includes for requires and it gave me this error message

Fatal error: Maximum execution time of 30 seconds exceeded in /home1/advertbo/public_html/dev_area/origocloud/include/views/blog/dbget.php on line 34

function getBlogMenu(){
$dbhost = 'localhost';
$dbuser = ' ';
$dbpass = ' ';

$con = mysql_connect($dbhost, $dbuser, $dbpass);
if (!$con)
  {
    die('Could not connect: ' . mysql_error());
  }

mysql_select_db("ado_ocblog", $con);

$htmlString = "";

$result = mysql_query(
    "SELECT *
    FROM subCat
    JOIN headCat ON subCat.headid = headCat.id
    ORDER BY headid ASC;");

$array = mysql_fetch_array($result);
mysql_close($con);

$pre = NULL;
$hc = 0;
$sc = 1;
while ($array) {
    if($pre == NULL){
        $pre = $row["headc"];
        $test[0][0]=$row["headc"];
        $test[0][1]=$row["subc"];

    }
    else
    {
        if($pre ==$row["headc"]){
            $sc++;
            $test[$hc][$sc] = $row["subc"];

        }
        else
        {
            $hc++;
            $sc = 1;
            $test[$hc][0]=$row["headc"];
            $test[$hc][$sc]=$row["subc"];
            $pre = $row["headc"];
        }
    }

}

foreach( $test as $arrays=>$cat)
{
        $first = TRUE;
        foreach($cat as $element)
        {
            if($first == TRUE)
            {
                $htmlString.= '<h3><a href="">'.$element.'</a></h3>
                        <div>
                            <ul>
                    ';
                $first = FALSE;
            }
            else
            {
                $htmlString.= '<li><a class="sub_menu" href="#">'.$element.'</a></li>';
            }

        }
        $htmlString.= '</ul> </div>';
}
return $htmlString;


}

I'm really stuck, the page just keeps timing out the point where i call the function

Answer 1

Try this:

while ($array = mysql_fetch_array($result)) {}

Take a look on PHP docs http://php.net/mysql_fetch_array

If does not work, your SQL Query returns too much values and craches the php execution

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