Help with an iterating function

[designermonkey]

Hi! I'm new here and need some help finishing off a function I have written to output thumbnails. I've written it the only way I know how, but now I've hit a dead end. The function is:

function output_thumbs( $path, $thumbpath, $thumbsize ){
// Set working directory
chdir(getcwd().$path);
// Make thumbs dir if it doesn't exist
if(!file_exists($thumbpath)){
	mkdir($thumbpath);
}
// Array the images
$images = list_files(getcwd(), '.jpg');
//Set up the counters
$precounter = 0;
$counter = 1;
$imagecount = count($images);
$iterator = 1;
$output = false;
// Output the initial <ol>
echo "<ul class=\"thumbs fl\">";
// Iterate through the images
foreach($images as $image){
	// Create thumbs if not exists
	if(!file_exists(getcwd().$thumbpath.'/'.$image)) create_thumb($image, $thumbpath, $thumbsize);
	// Set up the output numbering strings from the counter
	$thiscounter = $counter + $precounter;
	if($thiscounter <= 9) $countstring = '0'.$thiscounter;
	else $countstring = ''.$thiscounter.'';
	if($thiscounter <=99) $countstring = '0'.$countstring;
	// Get iptc details
	$iptc = get_iptc(getcwd().'/'.$image);
	($iptc[0]) ? $description = $iptc[0] : $description = "" ;
	($iptc[1]) ? $headline = $iptc[1] : $headline = "" ;
	($iptc[2]) ? $date = $iptc[2] : $date = "" ;
	// Strip extension for rewrite
	$imgexp = explode(".", $image);
	echo "<li class=\"fl mr mb thumb\" id=\"thumb$countstring\">";
	echo "<a href=\"$path/$imgexp[0]/\" title=\"View $headline\" rel=\"[thumbnails]\">";
	echo "<img class=\"\" src=\"$path/$thumbpath/$image\" alt=\"$description\" />";
	echo "<div class=\"hidden mbDesc\">$description</div>";
	echo "</a>";
	echo "</li>";

	// Increase the counter
	if($counter === 12){
		echo "</ol>";
		echo "<ol class=\"thumbs fl\">";
		$precounter += $counter;
		$counter = 1;
		$iterator ++;
	}else{
		$counter ++;
	}
}
echo '</ul>';
chdir($_SERVER['DOCUMENT_ROOT']);
}

 

Basically, it iterates through the images and outputs the <ul>s required per 12 images. I have set a variable to count the images, so that I could output blank <li>s in the last <ul> to fill it up to 12, that is where I'm stuck...

 

How do I do that?

 

Thanks in advance for any help offered...

[jammesz]

Not sure if i understand your problem correctly or not, but you can modify this snippet to fix it.

 

BTW this example has 100 images.

<?php

// example image array (100 images)
$image_array=array();
for($i=1;$i<101;$i++){
$image_array[]=$i;
}
// end

$count=0;
foreach($image_array as $image){
$count++;

if($count == 1){
	echo '<ul>';
}

echo '<li>'.$image.'</li>';

if($count==12){
	$count=0;
	echo '</ul>';
}
}

if($count !== 0){
$diff=12-$count;
for($i=1;$i<$diff+1;$i++){
	echo '<li>Blank '.$i.'</li>';
}
echo '</ul>';
}

?>

 

It fills in the shortage of images with 'blank' to make up 12 items in a list.

 

The result of the last ul is this:

    * 97
    * 98
    * 99
    * 100
    * Blank 1
    * Blank 2
    * Blank 3
    * Blank 4
    * Blank 5
    * Blank 6
    * Blank 7
    * Blank 8

 

hope this helps

[designermonkey]

Thanks for your help jammesz, I've answered my own question with a 'tea break epiphany', it's amazing what a cup of tea can do...

 

Completed function below (added $multiple variable to make it useful for other counts):

function output_thumbs( $path, $thumbpath, $thumbsize, $multiple ){
// Set working directory
chdir(getcwd().$path);
// Make thumbs dir if it doesn't exist
if(!file_exists($thumbpath)){
	mkdir($thumbpath);
}
// Array the images
$images = list_files(getcwd(), '.jpg');
//Set up the counters
$precounter = 0;
$counter = 1;
$imagecount = count($images);
$iterator = 1;
$output = false;
// Output the initial <ol>
echo "<ul class=\"thumbs fl\">";
// Iterate through the images
foreach($images as $image){
	// Create thumbs if not exists
	if(!file_exists(getcwd().$thumbpath.'/'.$image)) create_thumb($image, $thumbpath, $thumbsize);
	// Set up the output numbering strings from the counter
	$thiscounter = $counter + $precounter;
	if($thiscounter <= 9) $countstring = '0'.$thiscounter;
	else $countstring = ''.$thiscounter.'';
	if($thiscounter <=99) $countstring = '0'.$countstring;
	// Get iptc details
	$iptc = get_iptc(getcwd().'/'.$image);
	($iptc[0]) ? $description = $iptc[0] : $description = "" ;
	($iptc[1]) ? $headline = $iptc[1] : $headline = "" ;
	($iptc[2]) ? $date = $iptc[2] : $date = "" ;
	// Strip extension for rewrite
	$imgexp = explode(".", $image);
	echo "<li class=\"fl mr mb thumb\" id=\"thumb$countstring\">";
	echo "<a href=\"$path/$imgexp[0]/\" title=\"View $headline\" rel=\"[thumbnails]\">";
	echo "<img class=\"\" src=\"$path/$thumbpath/$image\" alt=\"$description\" />";
	echo "<div class=\"hidden mbDesc\">$description</div>";
	echo "</a>";
	echo "</li>";

	// Increase the counter
	if($counter === $multiple){
		echo "</ul>";
		echo "<ul class=\"thumbs fl\">";
		$precounter += $counter;
		$counter = 1;
		$iterator ++;
	}else{
		$counter ++;
	}
}
// If less than $multiple thumbnails, output blanks up to $multiple
if( ($iterator * $multiple) > $imagecount ){
	while( $imagecount < ($iterator * $multiple) ){
		echo "<li class=\"fl mr mb thumb\"> </li>";
		$imagecount ++;
	}
}
echo '</ul>';
chdir($_SERVER['DOCUMENT_ROOT']);
}

 

Quite a useful thumbnailer, uses the following two functions also, feel free to use it as you please!

// Folder list of actual files into array(string)
function list_files( $directory, $extension ){

foreach( array_diff( scandir( $directory ), array( '.', '..' ) ) as $file ){

	if( is_file( $directory.'/'.$file ) && ( ( $extension ) ? preg_grep( ('/'.$extension.'$/'), array($file) ) : 1 ) ){
		$list[] = $file;
	}
}

return $list;
}

// Create thumbs of passed filepaths
function create_thumb( $image, $thumbpath, $dimension ){

// get the path info for the image
$info = pathinfo( $image );

// coninue only if this is a jpeg
if( strtolower($info['extension']) == 'jpg' ){

	// load image and get size
	$img = imagecreatefromjpeg( $image );
	$width = imagesx( $img );
	$height = imagesy( $img );

	// calculate thumbnail size
	if($width >= $height && $width > $dimension) {
		$new_height = $dimension;
		$new_width = floor($width / ($height / $new_height));

	}elseif($width <= $height && $height > $dimension) {
		$new_width = $dimension;
		$new_height = floor($height / ($width / $new_width));
	}

	// create a new temporary image
	$tmp_img = imagecreatetruecolor( $dimension, $dimension );

	// 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, $thumbpath.'/'.$image );

}
}

[jammesz]

Your welcome, glad i can help.

 

Remember to mark this topic as solved too.