Any help?

[jamkelvl]

Okay so I put this code together a few months ago and it worked just fine.

 

I do not take credit for writing all of it, it's more or less a bunch of tutorials all put together.

 

Either way, I've recently tried to use it again for another site and have no idea as to why it is not working!

 

gallery.php is supposed to iterate thru a directory looking for all jpegs, then create thumbnails and place them in another directory called /thumbs/ currently.. it is not doing this.

 

example.php basically just displays the images...

 

The reason I split this into two files is because gallery.php was called on by more than one page as this site has/had more than one photo gallery.

 

Below is gallery.php:

<?PHP
function createThumbs( $pathToImages, $pathToThumbs, $thumbWidth ) 
{
  // open the directory
  $dir = opendir( $pathToImages );

  // loop through it, looking for any/all JPG files:
  while (false !== ($fname = readdir( $dir ))) {
	// parse path for the extension
	$info = pathinfo($pathToImages . $fname);

	if (file_exists("{$pathToThumbs}{$fname}")) {
		break;
	} else {			

		// continue only if this is a JPEG image
		if ( strtolower($info['extension']) == 'jpg' ) {

		  // load image and get image size
		  $img = imagecreatefromjpeg( "{$pathToImages}{$fname}" );
		  $width = imagesx( $img );
		  $height = imagesy( $img );

		  // calculate thumbnail size
		  $new_width = $thumbWidth;
		  $new_height = floor( $height * ( $thumbWidth / $width ) );
		  
		  if ($new_height > 150) {
			// change calculation because image is too tall
			$new_width = floor( $width * ( 150 / $height ) );
			$new_height = 150;			
		  }

		  // create a new tempopary image
		  $tmp_img = imagecreatetruecolor( $new_width, $new_height );

		  // copy and resize old image into new image 
		  imagecopyresampled( $tmp_img, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height );

		  // save thumbnail into a file
		  imagejpeg( $tmp_img, "{$pathToThumbs}{$fname}" );
		}
	  }
	  // close the directory
	  closedir( $dir );
	}
}
?>

 

and example.php:

 

<?PHP	
       include("gallery.php");
createThumbs("images/gallery/","images/gallery/thumbs/",150);

# image types to display 
$imagetypes = array("image/jpeg", "image/gif");

function getImages($dir) { 
	global $imagetypes;

	# array to hold return value
	$retval = array();

	# add trailing slash if missing 
	if(substr($dir, -1) != "/") $dir .= "/"; 

	# full server path to directory  
	$fulldir = "{$_SERVER['DOCUMENT_ROOT']}/$dir";
	$d = @dir($fulldir) or die("getImages: Failed opening directory $dir for reading");
	while(false !== ($entry = $d->read())) { 

		# skip hidden files 
		if($entry[0] == ".") continue; 

		# check for image files 
		$f = escapeshellarg("$fulldir$entry");
		if(in_array($mimetype = trim( `file -bi $f` ), $imagetypes)) { $retval[] = array( "file" => "/$dir$entry", "size" => getimagesize("$fulldir$entry") );
		}
	} 				
	$d->close(); 
	return $retval;
}

# fetch image details
$images = getImages("new/images/gallery/thumbs");

# constants
$search = array("new/images/gallery/thumbs/", ".JPG");
$replace = array("", "");
$count = 0;

# display on page 
foreach($images as $img) {
	echo $img['file'];
	// changes the string for bigger image
	$imgstring = $img['file'];
	$searchfor = array("/new/images/gallery/thumbs/");
	$newimgstring   = array("");

	$bigimg = str_replace($searchfor, $newimgstring, $imgstring);		

	// if thumbnail is clicked displays larger image
	switch ($_GET['img']) {
		case ($_GET['img'] == "whysthiswork?") :		
			echo ('<a href="gallery.php?img='.$bigimg.'"><img src="'.$img['file'].'" /></a>');	
		break;				
		case ($_GET['img']) :
			echo '<a href="gallery.php"><img src="images/gallery/'.$_GET['img'].'" /></a><br/>';
			echo '<a href="gallery.php">Back</a>';
			include("footer.php");						
		exit();																																
	}
	$count++;
}	
?>

 

No errors.. it just seems to sit there. 

 

I can remember I used to comment out a line or two of code to sort turn the gallery on or off so that it does not re-create the thumbnails on the fly every time a page is called. 

 

Thanks for the help or at least reading my code!

 

[iPixel]

I'd like to see how you set $pathToThumbs. Either i missed it or it's not included in your posted code.

 

Also, are you sure that the server has full write privelages to that folder? That might be an issue.

[jamkelvl]

I'm on the same server that I did this on before.  I tried messing around with the other page I did this with and can not get it to work.

//All other code omitted
function createThumbs( $pathToImages, $pathToThumbs, $thumbWidth ) 

 

//All other code omitted
createThumbs("images/gallery/","images/gallery/thumbs/",150);

 

[iPixel]

Sorry i guess i wasnt clear, i always have my foot in my mouth... when i asked hwo you set $pathToThumbs i meant somewhere in your code you must have something like $pathToThumbs = /thumbs/etc... let me see that.

[jamkelvl]

$

Sorry i guess i wasnt clear, i always have my foot in my mouth... when i asked hwo you set $pathToThumbs i meant somewhere in your code you must have something like $pathToThumbs = /thumbs/etc... let me see that.

 

$pathToThumbs is set when I call the function createThumbs( $pathToImages, $pathToThumbs, $thumbWidth )

 

This is done here...

 

// All other code omitted...
createThumbs("images/gallery/","images/gallery/thumbs/",150);

 

Therefore, the $pathToThumbs is "images/gallery/thumbs"

 

As of right now, I have the gallery.php code workign 100% it now creates the thumbs.  As for example.php I am now working to have it properly iterate thru the proper directories and display the images.

 

***** EDIT *****

 

Consider this solved.  Thanks for taking interest.  Feel free to use this code if you'd like.