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<?php
require_once '../config.inc.php';
$action = isset($_GET['view']) ? $_GET['view'] : '';
switch ($action) {
case 'add' :
add_image();
break;
case 'delete' :
delete_image();
break;
default :
// if action is not defined or unknown
header('Location: index.php?view=main');
}
function add_image(){
$name = $_POST['name'];
$alt = $_POST['alt'];
$images = uploadImage('image', '../images/gallery/');
$mainImage = $images['image'];
$thumbnail = $images['thumbnail'];
$sql = script_db_query("INSERT INTO gallery (pict_name, pict_alt, pict_path, pict_thumb) values ('$name','$alt','$mainImage','$thumbnail')");
if($sql){
header('Location: index.php');
} else {
echo 'Error: could not make the querry';
}
}
function delete_image(){
$id = $_GET['id'];
// get the image name and thumbnail
$sql = "SELECT pict_path, pict_thumb
FROM gallery
WHERE pict_id = $id";
$result = script_db_query($sql);
$row = script_db_fetch_array($result);
// remove the image and thumbnail
if ($row['pict_path']) {
unlink(SRV_ROOT . 'images/gallery/' . $row['pict_path']);
unlink(SRV_ROOT . 'images/gallery/' . $row['pict_thumb']);
}
// remove the image from database;
$sql = "DELETE FROM gallery
WHERE pict_id = $id";
script_db_query($sql);
header('Location: index.php');
}
/*
Create a thumbnail of $srcFile and save it to $destFile.
The thumbnail will be $width pixels.
*/
function createThumbnail($srcFile, $destFile, $width, $quality = 75)
{
$thumbnail = '';
if (file_exists($srcFile) && isset($destFile))
{
$size = getimagesize($srcFile);
$w = number_format($width, 0, ',', '');
$h = number_format(($size[1] / $size[0]) * $width, 0, ',', '');
$thumbnail = copyImage($srcFile, $destFile, $w, $h, $quality);
}
// return the thumbnail file name on sucess or blank on fail
return basename($thumbnail);
}
/*
Copy an image to a destination file. The destination
image size will be $w X $h pixels
*/
function copyImage($srcFile, $destFile, $w, $h, $quality = 75)
{
$tmpSrc = pathinfo(strtolower($srcFile));
$tmpDest = pathinfo(strtolower($destFile));
$size = getimagesize($srcFile);
if ($tmpDest['extension'] == "gif" || $tmpDest['extension'] == "jpg")
{
$destFile = substr_replace($destFile, 'jpg', -3);
$dest = imagecreatetruecolor($w, $h);
imageantialias($dest, TRUE);
} elseif ($tmpDest['extension'] == "png") {
$dest = imagecreatetruecolor($w, $h);
imageantialias($dest, TRUE);
} else {
return false;
}
switch($size[2])
{
case 1: //GIF
$src = imagecreatefromgif($srcFile);
break;
case 2: //JPEG
$src = imagecreatefromjpeg($srcFile);
break;
case 3: //PNG
$src = imagecreatefrompng($srcFile);
break;
default:
return false;
break;
}
imagecopyresampled($dest, $src, 0, 0, 0, 0, $w, $h, $size[0], $size[1]);
switch($size[2])
{
case 1:
case 2:
imagejpeg($dest,$destFile, $quality);
break;
case 3:
imagepng($dest,$destFile);
}
return $destFile;
}
function uploadimage($inputName, $uploadDir)
{
$image = $_FILES[$inputName];
$imagePath = '';
$thumbnailPath = '';
// if a file is given
if (trim($image['tmp_name']) != '') {
$ext = substr(strrchr($image['name'], "."), 1); //$extensions[$image['type']];
// generate a random new file name to avoid name conflict
$imagePath = md5(rand() * time()) . ".$ext";
list($width, $height, $type, $attr) = getimagesize($image['tmp_name']);
// make sure the image width does not exceed the
// maximum allowed width
if (LIMIT_WIDTH && $width > MAX_IMAGE_WIDTH) {
$result = createThumbnail($image['tmp_name'], $uploadDir . $imagePath, MAX_IMAGE_WIDTH);
$imagePath = $result;
} else {
$result = move_uploaded_file($image['tmp_name'], $uploadDir . $imagePath);
}
if ($result) {
// create thumbnail
$thumbnailPath = md5(rand() * time()) . ".$ext";
$result = createThumbnail($uploadDir . $imagePath, $uploadDir . $thumbnailPath, THUMBNAIL_WIDTH);
// create thumbnail failed, delete the image
if (!$result) {
unlink($uploadDir . $imagePath);
$imagePath = $thumbnailPath = '';
} else {
$thumbnailPath = $result;
}
} else {
// the product cannot be upload / resized
$imagePath = $thumbnailPath = '';
}
}
return array('image' => $imagePath, 'thumbnail' => $thumbnailPath);
}
?> |
Fonction PHP creation thumbnail automatique
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