Notepad's image gallery+GD

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December 16th, 2003, 01:35 PM

HriBB

Join Date: Apr 2007

Location: Slovenia

Posts: 15

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Notepad's image gallery+GD

SYSTEM: winxp, easyphp (apace 1.3, php 4.3.3, mysql 4.xxx)

ME: beginner

php Code:

Original - php Code

 
function display_body($navtree)
{
    if(isset($GLOBALS['nav']))
    {
        for($i=1; $i<count($GLOBALS['crunch']); $i++)
        $uri .= !is_numeric($GLOBALS['crunch'][$i]) ? $GLOBALS['crunch'][$i].'/' : '';
    }
 
    if(is_array($navtree))
    {
        if(!is_numeric(implode('', array_keys($navtree))))
        {
            print('<tr><td>');
            foreach($navtree as $key=>$value)
            {
                if(!is_int($key))
                {
                    if(is_array($value))
                        print('<a href="'.$_SERVER['PHP_SELF']
                        .'?nav='.rawurlencode($GLOBALS['nav']
                        .'>'.$key).'">'.$key.'</a><br />');
                    else
                        print($key.'<br />');
                }
            }
        print('</td></tr>');
    }
    else
    {
        $total = count($navtree);
        if(isset($GLOBALS['viewall']))
        {
            $check = $total / COLS;
            $rows = is_int($check) ? $check : floor($check) + 1;
        }
        else
            $rows = ROWS;
 
            navigator($total);
            for($i=0; $i<$rows; $i++)
            {
                print('<tr>');
                for($n=0; $n<COLS; $n++)
                {
                    $index = $GLOBALS['start']++;
                    $image = $index < $total ? $navtree[$index] : '&nbsp;';
                    print('<td align="center" width="'.THMBWIDTH.'" height="'.THMBHEIGHT.'">');
                    if($image != '&nbsp;')
                    {
                        print('<a href="'.$_SERVER['PHP_SELF']
                        .'?nav='.rawurlencode($GLOBALS['nav']
                        .'>'.$index).'">');
                        print('<img src="imgsrc.php?src='.PATH.rawurlencode
                        ($uri).$image.'" border="0" />');
                        print('</a>');
                    }
                            else
                        print($image);
                                print('</td>');
                }
                print('</tr>');
            }
            navigator($total);
        }
    }
    elseif(file_exists(PATH.$uri.$navtree))
    {
        $root = explode('/', dirname(PATH.'.'));
        print('<tr><td><img src="'.end($root).'/'.$uri.$navtree.'"></td></tr>');
    }
    else
        print('<tr><td>invalid request</td></tr>');
}

Ok this is the same code which notepad used in his tutorial. I get this error message:
Notice: Undefined variable: uri in d:wwwimages.php on line 85

I notice a dot(.) before = ($uri .= !is_numeric...)
If I remove it (but this probably is not OK) the error is gone. But then when i click the thumbnail i get: invalid request (i knew it was not OK)

Please help me.

December 16th, 2003, 03:02 PM

notepad

Join Date: Apr 2007

Location: Central, IL USA

Posts: 3,214

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Reputation Power: 6

RE: Notepad's image gallery+GD

it's just a notice, put an '@' before it:

@$uri .= etc..

kinda weird tho yah, of course it's an undefined variable.. that's why we're defining it

December 16th, 2003, 09:14 PM

HriBB

Join Date: Apr 2007

Location: Slovenia

Posts: 15

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RE: Notepad's image gallery+GD

what does the dot in front of = mean?

December 16th, 2003, 09:42 PM

notepad

Join Date: Apr 2007

Location: Central, IL USA

Posts: 3,214

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RE: Notepad's image gallery+GD

it's a concatination, it means add onto the existing value rather than redefine the variable completely..

for example:

php Code:

Original - php Code
$uri = 'one'; $uri = 'two'; echo $uri; // prints two $uri = 'one'; $uri .= 'two'; echo $uri; // prints onetwo

 
$uri = 'one';
$uri = 'two';
echo $uri; // prints two
 
$uri = 'one';
$uri .= 'two';
echo $uri; // prints onetwo

December 17th, 2003, 12:04 AM

HriBB

Join Date: Apr 2007

Location: Slovenia

Posts: 15

Time spent in forums: < 1 sec
Reputation Power: 0

RE: Notepad's image gallery+GD

thanx 4 the explanations guys.
but now i have another problem. GD library won't display the thumbnails. I can open the images, but the thumbnails aren't there. GD library works fine, i tested it..
this code:

php Code:

Original - php Code
<?php header ("Content-type: image/png"); $img_handle = ImageCreate (230, 20) or die ("Cannot Create image"); $back_color = ImageColorAllocate ($img_handle, 0, 10, 10); $txt_color = ImageColorAllocate ($img_handle, 233, 114, 191); ImageString ($img_handle, 31, 5, 5, "My first Program with GD", $txt_color); ImagePng ($img_handle); ?>

<?php 
        header ("Content-type: image/png"); 
        $img_handle = ImageCreate (230, 20) or die ("Cannot Create image"); 
        $back_color = ImageColorAllocate ($img_handle, 0, 10, 10); 
        $txt_color = ImageColorAllocate ($img_handle, 233, 114, 191); 
        ImageString ($img_handle, 31, 5, 5,  "My first Program with GD", $txt_color); 
        ImagePng ($img_handle); 
    ?>

Outputs a black image saying: "My first Program with GD"
I updated php to 4.3.4, apache is v. 1.3 (i use easyphp), and i run winXP (is this the problem). I studied GD library tutorial and studied the code in both images.php and imgsrc.php carefully but i cant find the solution.

is there a problem in this line?

php Code:

Original - php Code
print('<img src="imgsrc.php?src='.PATH.rawurlencode($uri).$image.'"

print('<img src="imgsrc.php?src='.PATH.rawurlencode($uri).$image.'"

Notepad u said that .= adds a value to the variable $uri (which is at the time NULL, or am i wrong). So if the value is added how come there is and error undefined variable uri?

Sorry for asking so many questions, but i really want to finish this great script, which is BTW exactly what i need, and what i've been looking for for a month

here's the code:

IMAGES.PHP

php Code:

Original - php Code

<?php

require_once('config.php');

$nav = isset($_REQUEST['nav']) ? urldecode($_REQUEST['nav']) : null;
if(isset($nav))
{
	$crunch = explode('>', trim($nav));
	foreach($crunch as $value)
	{
		if(!ctype_alnum(str_replace(' ', '', $value))) {
		$invalid = true;
	} else {
		$invalid = false;
		}
	}
	if($invalid)
	$nav = null;
}

$pg = isset($_REQUEST['pg']) && (ctype_digit($_REQUEST['pg']) || 
$_REQUEST['pg'] == 'all') ? $_REQUEST['pg'] : 0;
$viewall = is_numeric($pg) ? null : true;
$pg = intval($pg) <= 0 ? 1 : $pg;

$section = ROWS * COLS;
$end = $section * $pg;
$start = $end - $section;
$prev = $pg - 1;
$next = $pg + 1;

print('<table border="0" align="center" cellpadding="1" cellspacing="1">');

function navigator($total)
{
	$p = '<a href="'.$_SERVER['PHP_SELF'].'?nav='.rawurlencode($GLOBALS['nav']).'&pg='.$GLOBALS['prev'].'"><<</a>';
	$n = '<a href="'.$_SERVER['PHP_SELF'].'?nav='.rawurlencode($GLOBALS['nav']).'&pg='.$GLOBALS['next'].'">>></a>';
	$a = '<a href="'.$_SERVER['PHP_SELF'].'?nav='.rawurlencode($GLOBALS['nav']).'&pg=all">viewall</a>';

print('<tr><td align="center" colspan="' . COLS . '">');
	
	if(($GLOBALS['pg'] == 1 && $GLOBALS['end'] >= $total) || isset($GLOBALS['viewall'])) 
		print('<< : view all : >>');
	elseif($GLOBALS['pg'] == 1)
		print('<< : '.$a.' : '.$n);
	elseif($GLOBALS['end'] < $total)
		print($p.' : '.$a.' : '.$n);
	else
		print($p.' : '.$a.' : >>');

print('</td></tr>');
}

function display_body($navtree)
{
	if(isset($GLOBALS['nav']))
	{
		for($i=1; $i<count($GLOBALS['crunch']); $i++)
		@$uri .= !is_numeric($GLOBALS['crunch'][$i]) ? $GLOBALS['crunch'][$i].'/' : '';
	}

if(is_array($navtree))
	{
		if(!is_numeric(implode('', array_keys($navtree))))
		{
			print('<tr><td>');
			foreach($navtree as $key=>$value)
			{
				if(!is_int($key))
				{
					if(is_array($value))
						print('<a href="'.$_SERVER['PHP_SELF']
						.'?nav='.rawurlencode($GLOBALS['nav']
						.'>'.$key).'">'.$key.'</a><br />');
					else
						print($key.'<br />');
				}
			}
        print('</td></tr>');
	}
	else
	{
		$total = count($navtree);
		if(isset($GLOBALS['viewall']))
		{
			$check = $total / COLS;
			$rows = is_int($check) ? $check : floor($check) + 1;
		}
		else
			$rows = ROWS;

navigator($total);
			for($i=0; $i<$rows; $i++)
			{
				print('<tr>');
				for($n=0; $n<COLS; $n++)
				{
					$index = $GLOBALS['start']++;
					$image = $index < $total ? $navtree[$index] : '&nbsp;';
					print('<td align="center" width="'.THMBWIDTH.'" height="'.THMBHEIGHT.'">');
					if($image != '&nbsp;')
					{
						print('<a href="'.$_SERVER['PHP_SELF']
						.'?nav='.rawurlencode($GLOBALS['nav']
						.'>'.$index).'">');
						print('<img src="imgsrc.php?src='.PATH.rawurlencode($uri).$image.'" 								border="0" />');
						print('</a>');						
					}
            				else
						print($image);
            					print('</td>');
				}
				print('</tr>');
			}
			navigator($total);
		}
	}
	elseif(file_exists(PATH.$uri.$navtree))
	{
		$root = explode('/', dirname(PATH.'.'));
		print('<tr><td><img src="'.end($root).'/'.$uri.$navtree.'"></td></tr>');
	}
	else
		print('<tr><td>invalid request</td></tr>');
}

function categories($navtree)
{
	if(isset($GLOBALS['nav']))
	{
		for($i=1; $i<count($GLOBALS['crunch']); $i++)
		$navtree = &$navtree[$GLOBALS['crunch'][$i]];
		display_body($navtree);
	}
	else
		display_body($navtree);
}
categories($tree);

print('</table>');

<?php
 
require_once('config.php');
 
$nav = isset($_REQUEST['nav']) ? urldecode($_REQUEST['nav']) : null;
if(isset($nav))
{
    $crunch = explode('>', trim($nav));
    foreach($crunch as $value)
    {
        if(!ctype_alnum(str_replace(' ', '', $value))) {
        $invalid = true;
    } else {
        $invalid = false;
        }
    }
    if($invalid)
    $nav = null;
}
 
$pg = isset($_REQUEST['pg']) && (ctype_digit($_REQUEST['pg']) || 
$_REQUEST['pg'] == 'all') ? $_REQUEST['pg'] : 0;
$viewall = is_numeric($pg) ? null : true;
$pg = intval($pg) <= 0 ? 1 : $pg;
 
$section = ROWS * COLS;
$end = $section * $pg;
$start = $end - $section;
$prev = $pg - 1;
$next = $pg + 1;
 
print('<table border="0" align="center" cellpadding="1" cellspacing="1">');
 
function navigator($total)
{
    $p = '<a href="'.$_SERVER['PHP_SELF'].'?nav='.rawurlencode($GLOBALS['nav']).'&pg='.$GLOBALS['prev'].'"><<</a>';
    $n = '<a href="'.$_SERVER['PHP_SELF'].'?nav='.rawurlencode($GLOBALS['nav']).'&pg='.$GLOBALS['next'].'">>></a>';
    $a = '<a href="'.$_SERVER['PHP_SELF'].'?nav='.rawurlencode($GLOBALS['nav']).'&pg=all">viewall</a>';
 
    print('<tr><td align="center" colspan="' . COLS . '">');
    
    if(($GLOBALS['pg'] == 1 && $GLOBALS['end'] >= $total) || isset($GLOBALS['viewall'])) 
        print('<< : view all : >>');
    elseif($GLOBALS['pg'] == 1)
        print('<< : '.$a.' : '.$n);
    elseif($GLOBALS['end'] < $total)
        print($p.' : '.$a.' : '.$n);
    else
        print($p.' : '.$a.' : >>');
 
    print('</td></tr>');
}
 
function directory($dir)
{
    $mydir = opendir($dir);
    while(false !== ($file = readdir($mydir)))
    {
    if($file != "." && $file != "..")
    {
        if(is_dir($dir.$file))
        {
            @chdir('.');
            $tree[$file] = directory($dir.$file.'/');
            @chdir('..');
        }
        else
        {
            $size = getimagesize($dir.$file);
            if(in_array($size['mime'], unserialize(TYPE)))
            $tree[] = $file;
        }
    }
    }
    closedir($mydir);
    return $tree;
}
$tree = directory(PATH);
 
function display_body($navtree)
{
    if(isset($GLOBALS['nav']))
    {
        for($i=1; $i<count($GLOBALS['crunch']); $i++)
        @$uri .= !is_numeric($GLOBALS['crunch'][$i]) ? $GLOBALS['crunch'][$i].'/' : '';
    }
 
    if(is_array($navtree))
    {
        if(!is_numeric(implode('', array_keys($navtree))))
        {
            print('<tr><td>');
            foreach($navtree as $key=>$value)
            {
                if(!is_int($key))
                {
                    if(is_array($value))
                        print('<a href="'.$_SERVER['PHP_SELF']
                        .'?nav='.rawurlencode($GLOBALS['nav']
                        .'>'.$key).'">'.$key.'</a><br />');
                    else
                        print($key.'<br />');
                }
            }
        print('</td></tr>');
    }
    else
    {
        $total = count($navtree);
        if(isset($GLOBALS['viewall']))
        {
            $check = $total / COLS;
            $rows = is_int($check) ? $check : floor($check) + 1;
        }
        else
            $rows = ROWS;
 
            navigator($total);
            for($i=0; $i<$rows; $i++)
            {
                print('<tr>');
                for($n=0; $n<COLS; $n++)
                {
                    $index = $GLOBALS['start']++;
                    $image = $index < $total ? $navtree[$index] : '&nbsp;';
                    print('<td align="center" width="'.THMBWIDTH.'" height="'.THMBHEIGHT.'">');
                    if($image != '&nbsp;')
                    {
                        print('<a href="'.$_SERVER['PHP_SELF']
                        .'?nav='.rawurlencode($GLOBALS['nav']
                        .'>'.$index).'">');
                        print('<img src="imgsrc.php?src='.PATH.rawurlencode($uri).$image.'"                                 border="0" />');
                        print('</a>');            
                    }
                            else
                        print($image);
                                print('</td>');
                }
                print('</tr>');
            }
            navigator($total);
        }
    }
    elseif(file_exists(PATH.$uri.$navtree))
    {
        $root = explode('/', dirname(PATH.'.'));
        print('<tr><td><img src="'.end($root).'/'.$uri.$navtree.'"></td></tr>');
    }
    else
        print('<tr><td>invalid request</td></tr>');
}
 
function categories($navtree)
{
    if(isset($GLOBALS['nav']))
    {
        for($i=1; $i<count($GLOBALS['crunch']); $i++)
        $navtree = &$navtree[$GLOBALS['crunch'][$i]];
        display_body($navtree);
    }
    else
        display_body($navtree);
}
categories($tree);
 
print('</table>');
 
?>

IMGSRC.PHP

php Code:

Original - php Code

 
<?php
 
require_once('config.php');
 
$src = isset($_REQUEST['src']) ? urldecode($_REQUEST['src']) : null;
 
if(isset($src) && file_exists($src))
{
    header('Content-Type: image/jpg');
 
    list($width, $height, $type, $attr) = getimagesize($src);
    $img = imagecreatefromjpeg($src);
    $lowest = min(THMBWIDTH / $width, THMBHEIGHT / $height);
 
    if($lowest < 1)
    {
    $smallwidth = floor($lowest*$width);
    $smallheight = floor($lowest*$height);
    $tmp = imagecreatetruecolor($smallwidth, $smallheight);
    imagecopyresized($tmp, $img, 0, 0, 0, 0, $smallwidth, $smallheight, $width, $height);
    imagedestroy($img);
    $img = $tmp;
    }
    imagejpeg($img, '', 100);
    imagedestroy($img);
}
 
?>

CONFIG.PHP

php Code:

Original - php Code
<?PHP define('PATH', '/www/images/'); define('TYPE', serialize(array('image/jpg', 'image/jpeg', 'image/pjpeg'))); define('ROWS', 3); define('COLS', 5); define('THMBWIDTH', 100); define('THMBHEIGHT', 100); ?>

 
<?PHP
define('PATH', '/www/images/');
define('TYPE', serialize(array('image/jpg', 'image/jpeg', 'image/pjpeg')));
define('ROWS', 3);
define('COLS', 5);
define('THMBWIDTH', 100);
define('THMBHEIGHT', 100);
?>

Thanx for the answers in adwance

Bojan

December 17th, 2003, 12:21 AM

HriBB

Join Date: Apr 2007

Location: Slovenia

Posts: 15

Time spent in forums: < 1 sec
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RE: Notepad's image gallery+GD

some more things
script is in the folder d:www
images are in the folder d:wwwimages(gallery)(image_x.jpg)

and here is the url:
http://hribo.kicks-***.net/images.php

should i set permissions CHMOD 777 on files

and how to enable error reporting?

December 17th, 2003, 12:30 AM

Matt

Contributing User

Codewalkers Specialist (4000 - 4499 posts)

Join Date: Apr 2007

Location: Florida

Posts: 4,158

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RE: Notepad's image gallery+GD

[Moved to tutorial forum]

December 17th, 2003, 02:10 PM

notepad

Join Date: Apr 2007

Location: Central, IL USA

Posts: 3,214

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Reputation Power: 6

RE: Notepad's image gallery+GD

my script doesn't care for local addresses, it doesn't compensate for the colon i don't think.. someone else is having the same problem with a path similar to yours i'm kinda playin with it. i'll let you know

December 17th, 2003, 05:05 PM

HriBB

Join Date: Apr 2007

Location: Slovenia

Posts: 15

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RE: Notepad's image gallery+GD

ok...
d:/www/ is my root with all 3 scripts
/www/images/ here are the dirs with images

this is copy->paste from html view source.
<a href="/images.php?nav=%3Ekavka%3E0"><img src="imgsrc.php?src=/www/images/kavka%2Fslika001.jpg" border="0" /></a>

is the /www/ supposed to be there? this is the source of the large image, am i right?

and also there's an error: undefined variable $uri. is this the problem?

i just don't get it... it displays small pics with red x and when i click on any of them it opens picture normally. it just won't display thumbs. is there a possible error in imgsrc.php

GRRRRRR....

#10

December 17th, 2003, 05:43 PM

notepad

Join Date: Apr 2007

Location: Central, IL USA

Posts: 3,214

Time spent in forums: < 1 sec
Reputation Power: 6

RE: Notepad's image gallery+GD

put an @ symbol before the $uri line to get rid of the notice.. there's no problem in imgsrc.php, it just isn't being passed the right path. take a look at this thread for some possible fixes

#11

December 18th, 2003, 12:54 AM

HriBB

Join Date: Apr 2007

Location: Slovenia

Posts: 15

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RE: Notepad's image gallery+GD

Still NOTHING!!!

DOCUMENT_ROOT = d:/www
SERVER_ADDR = 127.0.0.1

/www/gallery/all three scripts here in the same dir
/www/gallery/images/ dir pappa with pictures in .jpg format

large images are displayed normally, but not thumbs so there must be an error in line

php Code:

Original - php Code
print('<img src="imgsrc.php?src='.PATH.rawurlencode($uri).$image.'" border="0" />');

print('<img src="imgsrc.php?src='.PATH.rawurlencode($uri).$image.'" border="0" />');

what should the line

php Code:

Original - php Code
<img src="imgsrc.php?src=

<img src="imgsrc.php?src=

look like?

php Code:

Original - php Code
<img src="/www/gallery/imgsrc.php?src=

<img src="/www/gallery/imgsrc.php?src=

php Code:

Original - php Code
<img src="/gallery/imgsrc.php?src=

<img src="/gallery/imgsrc.php?src=

or just

php Code:

Original - php Code
<img src="/www/gallery/imgsrc.php?src=

<img src="/www/gallery/imgsrc.php?src=

darn php!!!

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