0

I'm a noob, I know very little about php. Anyway, my page won't load at all, browser says its redirecting in a way that is not loading. As the title suggests I think the issue is with one of the php files I include with require_once(). Let me just show you:

thumbnail.php:

<?php
if(!function_exists("makethumbnail"))
{
    //die("right before function definition");
    function makethumbnail($src,$new_name,$new_width,$new_height)
    {
        die("inside makethumbnail");
        $si = imagecreatefromjpeg($src);
        $w = imagesx($si);
        $h = imagesy($si);
        $vi = imagecreatetruecolor($new_width,$new_height);
        imagecopyresampled($vi,$si,0,0,0,0,$new_width,$new_height,$w,$h);
        imagejpeg($vi,$new_name);
    }
}
?>

index.php:

<?php 
require_once("shopsite/thumbnail.php");
require_once("shopsite/checksession.php");
die("made it past the require_once");
$con = mysql_connect('localhost','jddancks','csc255');
mysql_select_db('test',$con);
$q = mysql_query("select prod_name,image_name,type1,type2 from Product",$con) or die("its the mysql");
$row = mysql_fetch_assoc($q);
$totalRows_Recordset1 = mysql_num_rows($q);
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Welcome to the shopsite</title>
<script type="text/javascript" src="shopsite/lib/jquery-1.4.2.min.js"></script>
<script type="text/javascript" src="shopsite/lib/jquery.jcarousel.min.js"></script>
<link rel="stylesheet" type="text/css" href="shopsite/skins/ie7/skin.css" />
<script type="text/javascript">
JQuery(document).ready(function() {
    JQuery('#mycarousel').jcarousel({
        itemLoadCallback:itemLoadCallbackFunction,
        start:1,
        auto:3,
        animation:"slow",
        wrap:"both"
    });
});
</script>
</head>
<body>
<?php
session_start();
if(isset($_SESSION['nick']))
{
    echo "<p>Welcome, ".$_SESSION['nick']."</p>";
}
die("Made it past the first php");
?>
<h1>Welcome to the one-stop shop for your every need!</h1>
<div class="jcarousel-ie7">
<p>Browse Items:</p>
  <div class="jcarousel-container">
    <div class="jcarousel-clip">
      <ul id="mycarousel" class="jcarousel-skin-ie7">
      <?php
      $cnt=1;
      do
      {
            $i=$row['image_name'];
            $name=preg_split("/.jpg/",$i);
            $name = "shopsite/thumb/".$name[0]."-index.jpg";
            if(!file_exists($name))
            {
                makethumbnail("shopsite/images/".$row['image_name'],$name,50,50);
            }
            echo "         <li class=\"jcarousel-item-".$cnt."\"><img src=\"".$name."\" /></li>\n";
            $cnt=$cnt+1;
            if($cnt>12) die("cnt larger than 12");
       }
       while($row = mysql_fetch_assoc($q));
       ?>
       </ul>
     </div>
     <div disabled="disabled" class="jcarousel-prev jcarousel-prev-disabled"></div>
     <div class="jcarousel-next"></div>
   </div>
</div>
</body>
</html>
<?php mysql_free_result($row);
mysql_close($con); ?>

I want to insert images into a jquery carousel so a visitor can browse items they may want to purchase. I've never used jcarousel so I don't know if what I have works, I'm pretty sure thats not the problem. I guess its just one f those things you need a second pair of eyes for. The die statements in thumbnail.php make me believe that is the culprit, but it won't make it to the first line of the function, which is really confusing. I don't know how the php preporcessor works, other than its client-side.

2
Contributors
18
Replies
20
Views
4 Years
Discussion Span
Last Post by dancks
0

Ok I wan't being clear. I put die() in various places to help with debugging. It never made to line 4. It never made past line 2.

0

Does this file exist: shopsite/thumbnail.php

Is it (from the file calling this), in the folder shopsite?

0

yes to all of the above, and I know to some degree its being read because I see "right before function definition" when the die() isn't commented out.

Edited by dancks: unclear

0

Ok, your not passing the required variables that you have set for the function:

if(!function_exists("makethumbnail"))
{
//die("right before function definition");
function makethumbnail($src,$new_name,$new_width,$new_height)
0

I'm sorry I don't think I understand. do you mean:

    if(!function_exists("makethumbnail"))
    {
    $src=0;
    $new_name=0;
    $new_width=0;
    $new_height=0;
    //die("right before function definition");
    function makethumbnail($src,$new_name,$new_width,$new_height)

that seems nuts. If you mean later in my code:

$i=$row['image_name'];
$name=preg_split("/.jpg/",$i);
$name = "shopsite/thumb/".$name[0]."-index.jpg";
if(!file_exists($name))
{
makethumbnail("shopsite/images/".$row['image_name'],$name,50,50);
}

That really shouldn't matter, as that should result in some fatal error to be thrown when "createtrueimage" or another function is called. Not, "Page will not load". Right? I really need someone to break down the php compiler for me.

0

wait a minute. Do you mean to tell me that when I include the file the function is actually executing? with null values?

0

That was a really crappy post. But basically the same thing happened. I'm curious as to why you thought that might be the problem. How exactly does php read and store a function?

0

Because ur include is firing the function straight away. That line shouldnt be there. Have a looked on php.net on how functions work? I would suggest u have a look

0

It still doesn't make any sense. Why should it differ from a function defined right in the file itself? if I cp'ed the function def where require_once is, would it work?

also, I'm trying a different approach with a class.

imageconvert.php:

<?php
class imageconvert
{
    die("inside class");
    function imageconvert()
    {
    }
    function makethumbnail($src,$new_name,$new_width,$new_height)
    {
        die("inside makethumbnail");
        $si = imagecreatefromjpeg($src);
        $w = imagesx($si);
        $h = imagesy($si);
        $vi = imagecreatetruecolor($new_width,$new_height);
        imagecopyresampled($vi,$si,0,0,0,0,$new_width,$new_height,$w,$h);
        imagejpeg($vi,$new_name);
    }
}
?>

and index.php:

<?php 
require_once("shopsite/imageconvert.php");
require_once("shopsite/checksession.php");
die("made it past the require_once");
$ic = new imageconvert();
$con = mysql_connect('localhost','jddancks','csc255');
mysql_select_db('test',$con);
$q = mysql_query("select prod_name,image_name,type1,type2 from Product",$con) or die("its the mysql");
$row = mysql_fetch_assoc($q);
$totalRows_Recordset1 = mysql_num_rows($q);
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Welcome to the shopsite</title>
<script type="text/javascript" src="shopsite/lib/jquery-1.4.2.min.js"></script>
<script type="text/javascript" src="shopsite/lib/jquery.jcarousel.min.js"></script>
<link rel="stylesheet" type="text/css" href="shopsite/skins/ie7/skin.css" />
<script type="text/javascript">
JQuery(document).ready(function() {
    JQuery('#mycarousel').jcarousel({
        itemLoadCallback:itemLoadCallbackFunction,
        start:1,
        auto:3,
        animation:"slow",
        wrap:"both"
    });
});
</script>
</head>
<body>
<?php
session_start();
if(isset($_SESSION['nick']))
{
    echo "<p>Welcome, ".$_SESSION['nick']."</p>";
}
die("Made it past the first php");
?>
<h1>Welcome to the one-stop shop for your every need!</h1>
<div class="jcarousel-ie7">
<p>Browse Items:</p>
  <div class="jcarousel-container">
    <div class="jcarousel-clip">
      <ul id="mycarousel" class="jcarousel-skin-ie7">
      <?php
      $cnt=1;
      do
      {
            $i=$row['image_name'];
            $name=preg_split("/.jpg/",$i);
            $name = "shopsite/thumb/".$name[0]."-index.jpg";
            if(!file_exists($name))
            {
                $ic->makethumbnail("shopsite/images/".$row['image_name'],$name,50,50);
            }
            echo "         <li class=\"jcarousel-item-".$cnt."\"><img src=\"".$name."\" /></li>\n";
            $cnt=$cnt+1;
            if($cnt>12) die("cnt larger than 12");
       }
       while($row = mysql_fetch_assoc($q));
       ?>
       </ul>
     </div>
     <div disabled="disabled" class="jcarousel-prev jcarousel-prev-disabled"></div>
     <div class="jcarousel-next"></div>
   </div>
</div>
</body>
</html>
<?php mysql_free_result($row);
mysql_close($con); ?>

No dice.

0

Also, if a mod comes across this thread, Can you please switch the tag with the title, I mixed them up when posting the thread. Thanks.

0

It can't be the include. I just tried replacing both "require_once" with the actual code. Nothing changed. I have no idea where its failing.

<?php 
session_start();
$session_name = "forces";
$com=0;
if(!function_exists("logout"))
{
    function logout()
    {
        $_SESSION = array();
        session_destroy();
        header('Location:http://www.google.com');
    }
}
if(!isset($_SESSION['time']) || !isset($_SESSION['nick']))
{
    $com=2;
    logout();
}
else if($_SESSION['time'] < time())
{
    $com=3;
    logout();
}
class imageconvert
{
    function imageconvert()
    {
        die("constructor called successfully");
    }
    function makethumbnail($src,$new_name,$new_width,$new_height)
    {
        die("inside makethumbnail");
        $si = imagecreatefromjpeg($src);
        $w = imagesx($si);
        $h = imagesy($si);
        $vi = imagecreatetruecolor($new_width,$new_height);
        imagecopyresampled($vi,$si,0,0,0,0,$new_width,$new_height,$w,$h);
        imagejpeg($vi,$new_name);
    }
}
die("made it past the require_once");
$ic = new imageconvert();
$con = mysql_connect('localhost','jddancks','csc255');
mysql_select_db('test',$con);
$q = mysql_query("select prod_name,image_name,type1,type2 from Product",$con) or die("its the mysql");
$row = mysql_fetch_assoc($q);
$totalRows_Recordset1 = mysql_num_rows($q);
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Welcome to the shopsite</title>
<script type="text/javascript" src="shopsite/lib/jquery-1.4.2.min.js"></script>
<script type="text/javascript" src="shopsite/lib/jquery.jcarousel.min.js"></script>
<link rel="stylesheet" type="text/css" href="shopsite/skins/ie7/skin.css" />
<script type="text/javascript">
JQuery(document).ready(function() {
    JQuery('#mycarousel').jcarousel({
        itemLoadCallback:itemLoadCallbackFunction,
        start:1,
        auto:3,
        animation:"slow",
        wrap:"both"
    });
});
</script>
</head>
<body>
<?php
session_start();
if(isset($_SESSION['nick']))
{
    echo "<p>Welcome, ".$_SESSION['nick']."</p>";
}
die("Made it past the first php");
?>
<h1>Welcome to the one-stop shop for your every need!</h1>
<div class="jcarousel-ie7">
<p>Browse Items:</p>
  <div class="jcarousel-container">
    <div class="jcarousel-clip">
      <ul id="mycarousel" class="jcarousel-skin-ie7">
      <?php
      $cnt=1;
      do
      {
            $i=$row['image_name'];
            $name=preg_split("/.jpg/",$i);
            $name = "shopsite/thumb/".$name[0]."-index.jpg";
            if(!file_exists($name))
            {
                $ic->makethumbnail("shopsite/images/".$row['image_name'],$name,50,50);
            }
            echo "         <li class=\"jcarousel-item-".$cnt."\"><img src=\"".$name."\" /></li>\n";
            $cnt=$cnt+1;
            if($cnt>12) die("cnt larger than 12");
       }
       while($row = mysql_fetch_assoc($q));
       ?>
       </ul>
     </div>
     <div disabled="disabled" class="jcarousel-prev jcarousel-prev-disabled"></div>
     <div class="jcarousel-next"></div>
   </div>
</div>
</body>
</html>
<?php mysql_free_result($row);
mysql_close($con); ?>
0

I got it to read imageconvert just fine now:

<?php
class imageconvert
{
    /*public function imageconvert()
    {
        die("constructor called successfully");
    }*/
    function makethumbnail($src,$new_name,$new_width,$new_height)
    {
        die("inside makethumbnail");
        $si = imagecreatefromjpeg($src);
        $w = imagesx($si);
        $h = imagesy($si);
        $vi = imagecreatetruecolor($new_width,$new_height);
        imagecopyresampled($vi,$si,0,0,0,0,$new_width,$new_height,$w,$h);
        imagejpeg($vi,$new_name);
    }
}
?>

and new main:

<?php 
include("shopsite/checksession.php");
die("made it past first include");
include("shopsite/imageconvert.php");
//die("made it past the require_once");
$ic = new imageconvert;
$con = mysql_connect('localhost','jddancks','csc255');
mysql_select_db('test',$con);
$q = mysql_query("select prod_name,image_name,type1,type2 from Product",$con) or die("its the mysql");
$row = mysql_fetch_assoc($q);
$totalRows_Recordset1 = mysql_num_rows($q);
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Welcome to the shopsite</title>
<script type="text/javascript" src="shopsite/lib/jquery-1.4.2.min.js"></script>
<script type="text/javascript" src="shopsite/lib/jquery.jcarousel.min.js"></script>
<link rel="stylesheet" type="text/css" href="shopsite/skins/ie7/skin.css" />
<script type="text/javascript">
JQuery(document).ready(function() {
    JQuery('#mycarousel').jcarousel({
        itemLoadCallback:itemLoadCallbackFunction,
        start:1,
        auto:3,
        animation:"slow",
        wrap:"both"
    });
});
</script>
</head>
<body>
<?php
//session_start();
if(isset($_SESSION['nick']))
{
    echo "<p>Welcome, ".$_SESSION['nick']."</p>";
}
die("Made it past the first php");
?>
<h1>Welcome to the one-stop shop for your every need!</h1>
<div class="jcarousel-ie7">
<p>Browse Items:</p>
  <div class="jcarousel-container">
    <div class="jcarousel-clip">
      <ul id="mycarousel" class="jcarousel-skin-ie7">
      <?php
      $cnt=1;
      do
      {
            $i=$row['image_name'];
            $name=preg_split("/.jpg/",$i);
            $name = "shopsite/thumb/".$name[0]."-index.jpg";
            if(!file_exists($name))
            {
                $ic->makethumbnail("shopsite/images/".$row['image_name'],$name,50,50);
            }
            echo "         <li class=\"jcarousel-item-".$cnt."\"><img src=\"".$name."\" /></li>\n";
            $cnt=$cnt+1;
            if($cnt>12) die("cnt larger than 12");
       }
       while($row = mysql_fetch_assoc($q));
       ?>
       </ul>
     </div>
     <div disabled="disabled" class="jcarousel-prev jcarousel-prev-disabled"></div>
     <div class="jcarousel-next"></div>
   </div>
</div>
</body>
</html>
<?php mysql_free_result($row);
mysql_close($con); ?>

ok now I'm having trouble with checksession.php:

<?php
session_start();
$session_name = "forces";
$com=0;
function logout()
{
    $_SESSION = array();
    session_destroy();
    header('Location:http://cs4.sunyocc.edu/~j.d.dancks/index.php');
}
if(!isset($_SESSION['time']) || !isset($_SESSION['nick']))
{
    $com=2;
    logout();
}
else if($_SESSION['time'] < time())
{
    $com=3;
    logout();
}
//header(sprintf("Location:http://cs4.sunyocc.edu/~j.d.dancks/politicalforum/errorcheck.php?thing=%s",$com));
?>

I'm afraid to use a function here for scope reasons but I'm wondering if I should do away with it altogether just because of potential scope issues.

0

Killed it. (Sort of. Now I have to figure out the image fixing nonsense) Fixed main:

<?php 
session_start();
$session_name = "forces";
$com=0;
function logout()
{
    $_SESSION = array();
    session_destroy();
    //header('Location:http://cs4.sunyocc.edu/~j.d.dancks/index.php');
}
if(!isset($_SESSION['time']) || !isset($_SESSION['nick']))
{
    $com=2;
    logout();
}
else if($_SESSION['time'] < time())
{
    $com=3;
    logout();
}
//die("made it past first include");
include("shopsite/imageconvert.php");
//die("made it past the require_once");
$ic = new imageconvert;
$con = mysql_connect('localhost','jddancks','csc255');
mysql_select_db('test',$con);
$q = mysql_query("select prod_name,image_name,type1,type2 from Product",$con) or die("its the mysql");
$row = mysql_fetch_assoc($q);
$totalRows_Recordset1 = mysql_num_rows($q);
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Welcome to the shopsite</title>
<script type="text/javascript" src="shopsite/lib/jquery-1.4.2.min.js"></script>
<script type="text/javascript" src="shopsite/lib/jquery.jcarousel.min.js"></script>
<link rel="stylesheet" type="text/css" href="shopsite/skins/ie7/skin.css" />
<script type="text/javascript">
JQuery(document).ready(function() {
    JQuery('#mycarousel').jcarousel({
        itemLoadCallback:itemLoadCallbackFunction,
        start:1,
        auto:3,
        animation:"slow",
        wrap:"both"
    });
});
</script>
</head>
<body>
<?php
//session_start();
if(isset($_SESSION['nick']))
{
    echo "<p>Welcome, ".$_SESSION['nick']."</p>";
}
//die("Made it past the first php");
?>
<h1>Welcome to the one-stop shop for your every need!</h1>
<div class="jcarousel-ie7">
<p>Browse Items:</p>
  <div class="jcarousel-container">
    <div class="jcarousel-clip">
      <ul id="mycarousel" class="jcarousel-skin-ie7">
      <?php
      $cnt=1;
      do
      {
            $i=$row['image_name'];
            $name=preg_split("/.jpg/",$i);
            $name = "shopsite/thumb/".$name[0]."-index.jpg";
            if(!file_exists($name))
            {
                $ic->makethumbnail("shopsite/images/".$row['image_name'],$name,50,50);
            }
            echo "         <li class=\"jcarousel-item-".$cnt."\"><img src=\"".$name."\" /></li>\n";
            $cnt=$cnt+1;
            if($cnt>12) die("cnt larger than 12");
       }
       while($row = mysql_fetch_assoc($q));
       ?>
       </ul>
     </div>
     <div disabled="disabled" class="jcarousel-prev jcarousel-prev-disabled"></div>
     <div class="jcarousel-next"></div>
   </div>
</div>
</body>
</html>
<?php mysql_free_result($row);
mysql_close($con); ?>
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