PHP MySQL script gone wrong - mysql

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)
{
$htmlString.= '<h3>'.$element.'</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
=]

Answer 2

I think it's time to take a step back and look at what you're doing :) This function should do what you want (even if you fixed the infinite loop problem in the function you gave, I don't think it would act how you want it to.):
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;");
// arrays can have strings as keys as well as numbers,
// and setting $some_array[] = 'value'; (note the empty brackets [])
// automatically appends 'value' to the end of $some_array,
// so you don't have to keep track of or increment indexes
while ($row = mysql_fetch_assoc($result))
{
$test[$row["headc"]][] = $row["subc"];
}
// don't close the connection until after we're done reading the rows
mysql_close($con);
// $test looks like: array('headc1' => array('subc1', 'subc2', 'sub3'), 'headc2' => array('subc4', 'subc5'), ...)
// so we step through each headc, and within that loop, step through each headc's array of subc's.
foreach($test as $headc => $subc_array)
{
$htmlString.= '<h3>'.$headc.'</h3><div><ul>';
foreach($subc_array as $subc)
{
$htmlString.= '<li><a class="sub_menu" href="#">'.$subc.'</a></li>';
}
$htmlString.= '</ul></div>';
}
return $htmlString;
}