PHP Array Sort

sgarvan · 09-05-2008 1:28pm #1

Before I pull my hair out here trying to get this to work, I was wondering can anyone see how come this isnt working.

The code creates thumbnails of pictures from the folder that it is in and displays them in a table which is 4 columns wide. At the moment the code seems to randomly pick files and place them in the html table. I am looking to sort the files by name (all files have numbers at the end - picture01, picture 02 etc).

I placed sort($files) into the code just before the table is created and then the page layout is thrown out. It displays alot more than 4 pictures across the page.

If anyone can see the problem It would be much appreciated.

Thanks

[PHP]<?
// GALLERY SETTINGS

Define('DIR_CACHE', '../../../tmp/'); // directory to store modified images
Define('THUMBNAIL_WIDTH', '150'); // thumbnails width
Define('THUMBNAIL_HEIGHT', '150'); // thumbnails height
Define('IMAGES_ROW', 4); // images on row

//

// Get folder name
$parentFolder = basename(dirname(__FILE__));

$img=$_GET;

if (!Is_Dir(DIR_CACHE)) {
mkdir(DIR_CACHE, 0777);
}

// IMAGE RESIZE AND SAVE TO FIT IN $new_width x $new_height
if ($img!='' && file_exists($img)) {

$w=$_GET;
$h=$_GET;

$thumb=strtolower(preg_replace('/\W/is', "_", "$img $w $h"));

$changed=0;
if (file_exists($img) && file_exists(DIR_CACHE.$thumb)) {
$mtime1=filemtime(DIR_CACHE.$thumb);
$mtime2=filemtime($img);
if ($mtime2>$mtime1) $changed=1;
} elseif (!file_exists(DIR_CACHE.$thumb)) {
$changed=1;
}

if ($changed) {

$filename=$img;
$new_width=(int)@$w;
$new_height=(int)@$h;
$lst=GetImageSize($filename);
$image_width=$lst[0];
$image_height=$lst[1];
$image_format=$lst[2];

if ($image_format==1) {
Header("Content-Type:image/gif");
readfile($filename);
exit;
} elseif ($image_format==2) {
$old_image=imagecreatefromjpeg($filename);
} elseif ($image_format==3) {
$old_image=imagecreatefrompng($filename);
} else {
exit;
}

if (($new_width!=0) && ($new_width<$image_width)) {
$image_height=(int)($image_height*($new_width/$image_width));
$image_width=$new_width;
// $image_height=$new_height;
}

if (($new_height!=0) && ($new_height<$image_height)) {
$image_width=(int)($image_width*($new_height/$image_height));
$image_height=$new_height;
// $image_width=$new_width;
}

// $new_image=imageCreate($image_width, $image_height); // for old GDlib
$new_image=imageCreateTrueColor($image_width, $image_height);

$white = ImageColorAllocate($new_image, 255, 255, 255);
ImageFill($new_image, 0, 0, $white);

// imagecopyresampled
// imageCopyResized (for old GDlib)
imageCopyResampled( $new_image, $old_image, 0, 0, 0, 0, $image_width, $image_height, imageSX($old_image), imageSY($old_image));

imageJpeg($new_image, DIR_CACHE.$thumb);
}

Header("Content-type:image/jpeg");
readfile(DIR_CACHE.$thumb);
exit;
}

//

$init_dir="./";

if (IsSet($HTTP_GET_VARS)) {
$dir=$HTTP_GET_VARS;
$dir=preg_replace("/\.+/", ".", $dir);
}

if (IsSet($dir) && ($dir!=$init_dir)) {
$directory=$dir;
$tmp=array_reverse(explode('/', $dir));
array_shift($tmp);
array_shift($tmp);
$out=urlencode(implode('/', array_reverse($tmp))."/");
} else {
$directory=$init_dir;
}

$dir=opendir($directory);
$k=0;
$on_row=IMAGES_ROW;

if (file_exists($directory."files.txt")) {
$data=LoadFile($directory."files.txt");
$lines=explode("\n", $data);
for($i=0;$i<count($lines);$i++) {
$ar=explode(' ', trim($lines[$i]));
$tmp=array_shift($ar);
$descriptions[$tmp]=implode(' ', $ar);
}
}

while ($file=readdir($dir)) {
if (Is_Dir($directory."/$file") && ($file!='tmp') && ($file!='.') && ($file!='..')) {
$directories[]=array('FILENAME'=>$file, 'DIR'=>$directory, 'DESCRIPTION'=>$descriptions[$file], 'URL'=>urlencode($directory."$file/"));
}

if (!Is_file($directory."/$file")) continue;

$ext=strtolower(substr($file, -3));

if ($ext!='gif' && $ext!='jpg') continue;

$rec=array();
$rec["FILENAME"]=$file;

$size=(int)(filesize($directory."/".$file)/1024);
if ($size>1024) {
$rec["SIZE"]=(((int)($size*100/1024))/100)." Mb";
} else {
$rec["SIZE"]=$size." Kb";
}
if (IsSet($descriptions[$file])) {
$rec=$descriptions[$file];
}
$rec["DIR"]=$directory;
if (($k+1)%$on_row==0) {
$rec=1;
}
$k++;
$files[]=$rec;

}

//

sgarvan · 09-05-2008 2:18pm

here is a screenshot of how the output looks with and without the sort added

daymobrew · 13-05-2008 2:29pm

I think that this happens because you are setting $rec when reading the file list. When you do the sort() this info ends up in the wrong element.

I recommend using a counter or for() loop when printing out the html code and test the counter or loop variable against IMAGES_ROW to determine where to add the table row tags.

BTW, you are using short php tags (i.e. '<?' as opposed to '<?php'). This could make your script less portable. My server requires the long tags (<?php) so I had to change each short tag before I could begin looking at your script.

Aside: I recommend using LightBox2 to display the images instead of opening a popup with picture_view.html.

PHP Array Sort

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