php image upload resize script

beermaker74 · February 6, 2007

I have this basic script that I am trying to work with. It works fine on my local machine. But when I upload itto my server it doesnt work.

It consists of two pages.

the upload page and an include.

here is the upload form

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

<title>Untitled Document</title>

</head>

<body>

<?php

include('http://www.myserver.com/vhtest/includes/test4.php');

?>

</form>

</body>

</html>

here is the include

<?php
if($_POST){
$img = $_FILES['image']['tmp_name'];
//$percent = $_GET['percent'];
$constrain = 1;
$w = 500;
$h = 380;

// get image size of img
$x = @getimagesize($img);
// image width
$sw = $x[0];
// image height
$sh = $x[1];

if ($percent > 0) {
    // calculate resized height and width if percent is defined
    $percent = $percent * 0.01;
    $w = $sw * $percent;
    $h = $sh * $percent;
} else {
    if (isset ($w) AND !isset ($h)) {
        // autocompute height if only width is set
        $h = (100 / ($sw / $w)) * .01;
        $h = @round ($sh * $h);
    } elseif (isset ($h) AND !isset ($w)) {
        // autocompute width if only height is set
        $w = (100 / ($sh / $h)) * .01;
        $w = @round ($sw * $w);
    } elseif (isset ($h) AND isset ($w) AND isset ($constrain)) {
        // get the smaller resulting image dimension if both height
        // and width are set and $constrain is also set
        $hx = (100 / ($sw / $w)) * .01;
        $hx = @round ($sh * $hx);

        $wx = (100 / ($sh / $h)) * .01;
        $wx = @round ($sw * $wx);

        if ($hx < $h) {
            $h = (100 / ($sw / $w)) * .01;
            $h = @round ($sh * $h);
        } else {
            $w = (100 / ($sh / $h)) * .01;
            $w = @round ($sw * $w);
        }
    }
}

$im = @ImageCreateFromJPEG ($img) or // Read JPEG Image
$im = @ImageCreateFromPNG ($img) or // or PNG Image
$im = @ImageCreateFromGIF ($img) or // or GIF Image
$im = false; // If image is not JPEG, PNG, or GIF

if (!$im) {
    // We get errors from PHP's ImageCreate functions...
    // So let's echo back the contents of the actual image.
    readfile ($img);
} else {
    // Create the resized image destination
    $thumb = @ImageCreateTrueColor ($w, $h);
    // Copy from image source, resize it, and paste to image destination
    @ImageCopyResampled ($thumb, $im, 0, 0, 0, 0, $w, $h, $sw, $sh);
    // Output resized image
$filename = "../vhtest/upload/jim/2/". $_FILES['image']['name'];
    imagejpeg($thumb,$filename,100);
}
}
?>

my local machine has php 5.

my server has php 4.4

first question

is there something in the include that doesnt work for php4.4? I looked up almost every function and they were all supported. And by the way the folder that I am trying to write to are all chmod 777.

the second question is does it need a absolute path or can it use a relative path?

on my local machine it works with a relative path.

I have tried changing the path to include

1 a relative path ie "../vhtest/upload/jim/2/". $_FILES['image']['name'];

2 the full path to the folder ie /home/usr/vhtest/upload/ etc

3 an http path ie htttp://www.myserver.com.vhtest/upload etc

none of them seem to work. I had this in a much more complicated page where I have multiple upload and mysql insert. I thought there might be someproblem in there so I built this simple form to test it out. Once again everything works on my local machine but not on the server. Any help would be greatly appreciated.

thanks

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php image upload resize script

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