Hi
I found this script on the web and all being well it should work. It is an resize image script to work with an upload file script via the include() function. But I keep getting an error message and I am unable to upload a file, (the file is a jpg called test) would anyone be so kind as to have a look at the scripts and try and determine what might be causing the error.
Here is the error:
Warning: imagejpeg() [function.imagejpeg]: Unable to open 'http://www.mysite.co.uk/php_solutions/test.JPG_thb.jpg' for writing in /home/philweb/public_html/php_solutions/create_thumb.inc.php on line 69
line 69 is this
$success = imagejpeg($thumb, THUMBS_DIR.$name.'_thb.jpg', 100);
Thanks in advance,
Phil
Here are the two complete scripts.
// define constants
define('THUMBS_DIR', 'http://www.mysite.co.uk/php_solutions/');
define('MAX_WIDTH', 120);
define('MAX_HEIGHT', 90);
// process the uploaded image
if (is_uploaded_file($_FILES['image']['tmp_name'])) {
$original = $_FILES['image']['tmp_name'];
// begin by getting the details of the original
list($width, $height, $type) = getimagesize($original);
// calculate the scaling ratio
if ($width <= MAX_WIDTH && $height <= MAX_HEIGHT) {
$ratio = 1;
}
elseif ($width > $height) {
$ratio = MAX_WIDTH/$width;
}
else {
$ratio = MAX_HEIGHT/$height;
}
// strip the extension off the image filename
$imagetypes = array('/\.gif$/', '/\.jpg$/', '/\.jpeg$/', '/\.png$/');
$name = preg_replace($imagetypes, '', basename($_FILES['image']['name']));
// create an image resource for the original
switch($type) {
case 1:
$source = @ imagecreatefromgif($original);
if (!$source) {
$result = 'Cannot process GIF files. Please use JPEG or PNG.';
}
break;
case 2:
$source = imagecreatefromjpeg($original);
break;
case 3:
$source = imagecreatefrompng($original);
break;
default:
$source = NULL;
$result = 'Cannot identify file type.';
}
// make sure the image resource is OK
if (!$source) {
$result = 'Problem copying original';
}
else {
// calculate the dimensions of the thumbnail
$thumb_width = round($width * $ratio);
$thumb_height = round($height * $ratio);
// create an image resource for the thumbnail
$thumb = imagecreatetruecolor($thumb_width, $thumb_height);
// create the resized copy
imagecopyresampled($thumb, $source, 0, 0, 0, 0, $thumb_width, $thumb_height, $width, $height);
// save the resized copy
switch($type) {
case 1:
if (function_exists('imagegif')) {
$success = imagegif($thumb, THUMBS_DIR.$name.'_thb.gif');
$thumb_name = $name.'_thb.gif';
}
else {
$success = imagejpeg($thumb, THUMBS_DIR.$name.'_thb.jpg', 50);
$thumb_name = $name.'_thb.jpg';
}
break;
case 2:
$success = imagejpeg($thumb, THUMBS_DIR.$name.'_thb.jpg', 100);
$thumb_name = $name.'_thb.jpg';
break;
case 3:
$success = imagepng($thumb, THUMBS_DIR.$name.'_thb.png');
$thumb_name = $name.'_thb.png';
}
if ($success) {
$result = "$thumb_name created";
}
else {
$result = 'Problem creating thumbnail';
}
// remove the image resources from memory
imagedestroy($source);
imagedestroy($thumb);
}
}
// define a constant for the maximum upload size
define ('MAX_FILE_SIZE', 51200);
if (array_key_exists('upload', $_POST)) {
// define constant for upload folder
define('UPLOAD_DIR', 'http://www.mysite.co.uk/php_solutions/');
// replace any spaces in original filename with underscores
// at the same time, assign to a simpler variable
$file = str_replace(' ', '_', $_FILES['image']['name']);
// convert the maximum size to KB
$max = number_format(MAX_FILE_SIZE/1024, 1).'KB';
// create an array of permitted MIME types
$permitted = array('image/gif', 'image/jpeg', 'image/pjpeg', 'image/png');
// begin by assuming the file is unacceptable
$sizeOK = false;
$typeOK = false;
// check that file is within the permitted size
if ($_FILES['image']['size'] > 0 && $_FILES['image']['size'] <= MAX_FILE_SIZE) {
$sizeOK = true;
}
// check that file is of an permitted MIME type
foreach ($permitted as $type) {
if ($type == $_FILES['image']['type']) {
$typeOK = true;
break;
}
}
if ($sizeOK && $typeOK) {
switch($_FILES['image']['error']) {
case 0:
include('./create_thumb.inc.php');
break;
case 3:
$result = "Error uploading $file. Please try again.";
default:
$result = "System error uploading $file. Contact webmaster.";
}
}
elseif ($_FILES['image']['error'] == 4) {
$result = 'No file selected';
}
else {
$result = "$file cannot be uploaded. Maximum size: $max. Acceptable file types: gif, jpg, png.";
}
}
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>File upload</title>
</head>
<body>
<?php
// if the form has been submitted, display result
if (isset($result)) {
echo "<p><strong>$result</strong></p>";
}
?>
<form action="" method="post" enctype="multipart/form-data" name="uploadImage" id="uploadImage">
<p>
<label for="image">Upload image:</label>
<input type="hidden" name="MAX_FILE_SIZE" value="<?php echo MAX_FILE_SIZE; ?>" />
<input type="file" name="image" id="image" />
</p>
<p>
<input type="submit" name="upload" id="upload" value="Upload" />
</p>
</form>
</body>
</html>