create thumbnail (350*300 max + Ratio)

[Thot]

I need a script that resizes foto's from "folder 1"
and then put them into "folder 2"

besides that the maximum pixel width and hight is 350*300
and the Ratio needs to stay the same

I tried some scripts
but i can not make it work proper

I spend hours on it
maybe someone can help me out.

thnx in advance

[Thot]

I have problems with the last part

    $im = ImageCreateFromJpeg("upload/00000998.jpg");
    $im = ImageCreate(256,128);
    ImageJpeg($im,"foto/newimg.jpg");

It is black
instead of the a small version of the image

[Weedpacket]

That's because you're creating an image from the JPEG file and then you're replacing it with a new empty image.

What you need to do is store the new empty image in a different variable ($newim) copy $im into that (resizing it or resampling it if you want to change its dimensions) and then save $newim.

[Thot]

Well,
It kinda works
but i still got some errors

problem #1: it thinks my folder is a file
problem #1: the new width and height are calculated once

I have no clu how to get it right
I tried a lot

Can someone help me out
by taking the errors out prehaps 🙁

http://clanteo.org/=/multi_upload3/generate_foto_v1.php

<?php
//no timeout
///////////////////////////
@set_time_limit(0);

//variables
//can be changed
///////////////////////////
$max_width    = 350;
$max_height   = 300;

$dir_upload = "./upload/";
$dir_foto = "./foto/";



//don't change below
//search in directory for excisting files
///////////////////////////
if ($handle = opendir("$dir_upload")) {
   while (false !== ($file = readdir($handle))) {


//combine information
///////////////////////////
$foto_source = $dir_upload.$file;
$foto_desteny = $dir_foto.$file;


$size = getimagesize("$foto_source");
   $height = $size[1];
   $width = $size[0];




//ratio
// -------------> it is only calculated once
///////////////////////////
$img_name = $foto_source;
$new_name = $foto_desteny;
$size=GetImageSize($img_name);
$width_ratio  = ($size[0] / $max_width);
$height_ratio = ($size[1] / $max_height);





if($width_ratio >=$height_ratio) 
{
   $ratio = $width_ratio;
}
else
{
   $ratio = $height_ratio;
}

$new_width    = ($size[0] / $ratio);
$new_height   = ($size[1] / $ratio);


//create image
///////////////////////////
$src_img = ImageCreateFromJPEG($img_name);
$thumb = ImageCreateTrueColor($new_width,$new_height);
ImageCopyResampled($thumb, $src_img, 0,0,0,0,($new_width-1),($new_height-1),$size[0],$size[1]);
ImageJPEG($thumb,$new_name);


//echo info
///////////////////////////
echo "<br> \n";
echo "$height \n";
echo "<br> \n";
echo "$width \n";
echo "<br> \n";

echo "<br> \n";

echo "$new_height \n";
echo "<br> \n";
echo "$new_width \n";
echo "<br> \n";

echo "<br> \n";

echo "$foto_source";
echo "<br> \n";
echo "$foto_desteny";
   }
} 

/*
// This will delete all the files in the Upload Folder

///////////////////
ImageDestroy($src_img);
ImageDestroy($thumb);
///////////////////

foreach (glob("upload/*.*") as $filename) {
echo "$filename size " . filesize($filename) . "\n";
unlink($filename);
}
*/
?>