| New file |
|---|
| 0,0 → 1,100 |
|---|
| <?php |
| // Vérification de la présence d'un chemin vers l'image |
| if($_GET['img'] == '') { |
| exit; |
| } |
| |
| // Récupération de paramêtres |
| $_image_ = urldecode( $_GET['img'] ); |
| $_dossier = dirname($_image_).'/cache/'; |
| $_fichier = pathinfo($_image_); |
| $_fichier['filename'] = trim(basename($_image_, $_fichier['extension']), '.'); |
| $_width_min_ = intval($_GET['width']); |
| $_height_min_ = intval($_GET['height']); |
| $_quality_ = intval($_GET['quality']); |
| $_centrage = false; |
| if (isset($_GET['centrage'])) { |
| $_centrage = (bool)$_GET['centrage']; |
| } |
| |
| // Création du dossier de cache |
| if (!is_dir($_dossier)) { |
| mkdir($_dossier); |
| } |
| // Création du nom du fichier de cache |
| $fichier_cache = $_dossier.$_fichier['filename'].'_w'.$_width_min_.'_q'.$_quality_.'.'.$_fichier['extension']; |
| //echo $fichier_cache; |
| // Recherche de la présence d'une image en cache ou création de celle-ci |
| if (file_exists($fichier_cache)) { |
| switch (strtolower($_fichier['extension'])) { |
| case 'jpg' : |
| header('Content-type: image/jpg'); |
| Imagejpeg(ImageCreateFromJpeg($fichier_cache)); |
| break; |
| case 'gif' : |
| header('Content-type: image/gif'); |
| Imagegif(ImageCreateFromGif($fichier_cache)); |
| break; |
| case 'png' : |
| header('Content-type: image/png'); |
| Imagepng(ImageCreateFromPng($fichier_cache)); |
| break; |
| } |
| } else { |
| // Calcul de la hauteur et de la largeur |
| $info = getimagesize($_image_); |
| if ($info[0] == '') { |
| exit(); |
| } |
| $new_w = $_width_min_; |
| $new_h = (int)($info[1]*($new_w/$info[0])); |
| if(($_height_min_) AND ($new_h > $_height_min_)) { |
| $new_h = $_height_min_; |
| $new_w = (int)($info[0]*($new_h/$info[1])); |
| } |
| |
| // Définition des points d'origine de destination |
| $dst_x = 0; |
| $dst_y = 0; |
| $dst_l = $new_w; |
| $dst_h = $new_h; |
| if ($_centrage != false) { |
| $dst_x = (int)(($_width_min_ - $new_w) / 2); |
| $dst_y = (int)(($_height_min_ - $new_h) / 2); |
| $dst_l = $_width_min_; |
| $dst_h = $_height_min_; |
| } |
| |
| // Création de l'image |
| switch (strtolower($_fichier['extension'])) { |
| case 'jpg' : |
| header("Content-type: image/jpg"); |
| $dst_img = imagecreatetruecolor($dst_l, $dst_h); |
| $c_fond = imagecolorallocate($dst_img, 255, 255, 255); |
| imagefill($dst_img, 0, 0, $c_fond); |
| $src_img = ImageCreateFromJpeg($_image_); |
| imagecopyresampled($dst_img,$src_img,$dst_x,$dst_y,0,0,$new_w,$new_h,ImageSX($src_img),ImageSY($src_img)); |
| $img_cache = Imagejpeg($dst_img, $fichier_cache, $_quality_); |
| $img = Imagejpeg($dst_img, '', $_quality_); |
| break; |
| case 'gif' : |
| header("Content-type: image/gif"); |
| $dst_img=ImageCreate($new_w,$new_h); |
| $src_img=ImageCreateFromGif($_image_); |
| ImagePaletteCopy($dst_img,$src_img); |
| ImageCopyResized($dst_img,$src_img,$dst_x,$dst_y,0,0,$new_w,$new_h,ImageSX($src_img),ImageSY($src_img)); |
| $img_cache = Imagegif($dst_img, $fichier_cache, $_quality_); |
| $img = Imagegif($dst_img,'', $_quality_); |
| break; |
| case 'png' : |
| header("Content-type: image/png"); |
| $dst_img=ImageCreate($new_w,$new_h); |
| $src_img=ImageCreateFromPng($_image_); |
| ImagePaletteCopy($dst_img,$src_img); |
| ImageCopyResized($dst_img,$src_img,$dst_x,$dst_y,0,0,$new_w,$new_h,ImageSX($src_img),ImageSY($src_img)); |
| $img_cache = Imagepng($dst_img, $fichier_cache, $_quality_); |
| $img = Imagepng($dst_img,'', $_quality_); |
| break; |
| } |
| } |
| ?> |