upload + resize + ajout logo

Marsh Posté le 14-05-2008 à 16:35:26

Bonjour bonjour,

j'ai un soucis dans mon script, j'utilise SWF upload :
http://demo.swfupload.org/applicationdemo/index.php

c'est le upload.php le bug ce trouve sans doute au niveau de la fusion des images mais je ne sais pas pourquoi ! et j'aimerai enregistré l'image dans un fichier mais je voi pas comment :s!

Code :

<?php
/* Note: This thumbnail creation script requires the GD PHP Extension.
If GD is not installed correctly PHP does not render this page correctly
and SWFUpload will get "stuck" never calling uploadSuccess or uploadError
*/
// Get the session Id passed from SWFUpload. We have to do this to work-around the Flash Player Cookie Bug
if (isset($_POST["PHPSESSID"])) {
session_id($_POST["PHPSESSID"]);
}
session_start();
// Check the upload
if (!isset($_FILES["Filedata"]) || !is_uploaded_file($_FILES["Filedata"]["tmp_name"]) || $_FILES["Filedata"]["error"] != 0) {
header("HTTP/1.1 500 Internal Server Error" );
echo "invalid upload";
exit(0);
}
// Get the image and create a thumbnail
$img = @imagecreatefromjpeg($_FILES["Filedata"]["tmp_name"]);
if (!$img) {
header("HTTP/1.1 500 Internal Server Error" );
echo "could not create image handle";
exit(0);
}
$width = imageSX($img);
$height = imageSY($img);
if (!$width || !$height) {
header("HTTP/1.1 500 Internal Server Error" );
echo "Invalid width or height";
exit(0);
}
// Build the big tof
$target_width = 700;
$target_height = 700;
$target_ratio = $target_width / $target_height;
$img_ratio = $width / $height;
if ($target_ratio > $img_ratio) {
$new_height = $target_height;
$new_width = $img_ratio * $target_height;
} else {
$new_height = $target_width / $img_ratio;
$new_width = $target_width;
}
if ($new_height > $target_height) {
$new_height = $target_height;
}
if ($new_width > $target_width) {
$new_height = $target_width;
}
$new_img = ImageCreateTrueColor($target_width, $target_height);
if (!@imagefilledrectangle($new_img, 0, 0, $target_width-1, $target_height-1, 0)) { // Fill the image black
header("HTTP/1.1 500 Internal Server Error" );
echo "Could not fill new image";
exit(0);
}
if (!@imagecopyresampled($new_img, $img, ($target_width-$new_width)/2, ($target_height-$new_height)/2, 0, 0, $new_width, $new_height, $width, $height)) {
header("HTTP/1.0 500 Internal Server Error" );
echo "Could not resize image";
exit(0);
}
if (!isset($_SESSION["file_info"])) {
$_SESSION["file_info"] = array();
}
// On charge d'abord les images
$source = imagecreatefrompng("images/logo_tof.png" ); // Le logo est la source
//$destination = imagecreatefromjpeg("test.jpg" ); // La photo est la destination
// Les fonctions imagesx et imagesy renvoient la largeur et la hauteur d'une image
$largeur_source = imagesx($source);
$hauteur_source = imagesy($source);
$largeur_destination = imagesx($new_img);
$hauteur_destination = imagesy($new_img);
// On veut placer le logo en bas à droite, on calcule les coordonnées où on doit placer le logo sur la photo
$destination_x = $largeur_destination - $largeur_source;
$destination_y = $hauteur_destination - $hauteur_source;
// On met le logo (source) dans l'image de destination (la photo)
if (!@imagecopymerge($new_img, $source, $destination_x, $destination_y, 0, 0, $largeur_source, $hauteur_source, 60);
header("HTTP/1.0 500 Internal Server Error" );
echo "Could not merge image";
exit(0);
}
// Use a output buffering to load the image into a variable
ob_start();
imagejpeg($new_img);
$new_img = ob_get_contents();
ob_end_clean();
$file_id2 = md5($_FILES["Filedata"]["tmp_name"] + rand()*100000);
$_SESSION["file_info"][$file_id2] = $new_img;
echo $file_id2; // Return the file id to the script
?>