Problems running a session
Posted: Fri Jun 10, 2005 4:53 am
I'm having problems on a script that runs a session. I have narrowed it down and think the problem is with running this session, as all I get is a blank screen when running it. I have debugged the script and found that when I comment out parts of the code and the session_start(); then it dispays part of it, whereas when I leave session_start(); in it just displays 'DEBUG:start' on the page. Here is the code with the parts commented out.
Code: Select all
<?php
error_reporting(E_ALL);
//echo ("DEBUG:start");
//session_start();
echo ("DEBUG:check1");
$display_block .= "<h1>Shoot The Moon Records - Item Detail</h1>";
echo ("DEBUG:check2");
//validate item
$get_item = "SELECT c.cat_name, si.item_name, si.item_price,
si.item_desc, si.item_image FROM store_items AS si LEFT JOIN
store_categories AS c ON c.id = si.cat_id WHERE si.id = $_GET[item_id]";
echo ("DEBUG:check3");
$get_item_res = mysql_query($get_item) or die(mysql_error());
echo ("DEBUG:check4");
if (mysql_num_rows($get_item_res) < 1) {
//invalid item
$display_block .= "<p><em>Invalid item selection.</em></p>";
} else {
echo ("DEBUG:check5");
$cat_name = strtoupper(stripslashes(mysql_result($get_item_res,0,'cat_name')));
echo ("DEBUG:check6");
$item_name = stripslashes(mysql_result($get_item_res,0,'item_name'));
echo ("DEBUG:check7");
$item_price = mysql_result($get_item_res,0,'item_price');
echo ("DEBUG:check8");
$item_desc = stripslashes(mysql_result($get_iem_res,0,'item_desc'));
echo ("DEBUG:check9");
$item_image = mysql_result($get_item_res,0,'item_image');
echo ("DEBUG:check10");
//make breadcrumb trail
$display_block .= "<p><strong><em>You are viewing:</em><br>
<a href=\"seestore.php?cat_id=$cat_id\">$cat_name</a>
> $item_name</strong></p>
<table cellpadding=3 cellspacing=3>
<tr>
<td valign=middle align=center><img src=\"$item_image\"></td>
<td valign=middle><p><strong>Description:</strong><br>$item_desc</p>
<p><strong>Price:</strong> £$item_price</p>";
echo ("DEBUG:check11");
// <form method=\"post\" action=\"addtocart.php\">";
//echo ("DEBUG:check12");
//get colours
// $get_colours = "SELECT shirt_colour FROM store_shirts WHERE
// item_id = $_GET[item_id] ORDER BY shirt_colour";
//echo ("DEBUG:check13");
// $get_colours_res = mysql_query($get_colours) or die(mysql_error());
echo ("DEBUG:check14");
if (mysql_num_rows($get_colours_res) > 0) {
// $display_block .= "<p><strong>Available Colours:</strong></p>
// <select name=\"sel_shirt_colour\">";
echo ("DEBUG:check15");
while ($colours = mysql_fetch_array($get_colours_res)) {
$shirt_colour = $colours['shirt_colour'];
// $display_block .= "
// <option value=\"$shirt_colour\">$shirt_colour</option>";
}
// $display_block .= "</select>";
}
//echo ("DEBUG:check16");
//get sizes
// $get_sizes = "SELECT shirt_size FROM store_shirts WHERE
// item_id = $_GET[item_id] ORDER BY shirt_size";
//echo ("DEBUG:check17");
// $get_sizes_res = mysql_query($get_sizes) or die(mysql_error());
echo ("DEBUG:check18");
if (mysql_num_rows($get_sizes_res) > 0) {
// $display_block .= "<p><strong>Available Sizes:</strong></p>
// <select name=\"sel_shirt_size\">";
echo ("DEBUG:check19");
while ($sizes = mysql_fetch_array($get_sizes_res)) {
$shirt_size = $sizes['shirt_size'];
// $display_block .= "
// <option value=\"$shirt_size\">$shirt_size</option>";
}
// $display_block .= "</select>";
}
//echo ("DEBUG:check20");
// $display_block .= "
// <p><strong>Select Quantity:</strong></p>
// <select name=\"sel_item_qty\">";
echo ("DEBUG:check21");
for ($i=1; $i<11; $i++) {
// $display_block .= "<option value =\"$i\">$i</option>";
}
//echo ("DEBUG:check22");
// $display_block .= "
// </select>
// <input type=\"hidden\" name=\"sel_item_id\" value=\"$_GET[item_id]\">
// <p><input type=\"submit\" name=\"submit\" value=\"Add to Cart\"></p>
// </form>
// </td>
// </tr>
// </table>";
}
?>