<?php

// valeur par défaut

$rank = -1;

// Surcharge par les arguments

extract($_REQUEST, EXTR_IF_EXISTS);

$logo='topisto_vert_tr.png';

$block_image = @imagecreatefrompng($logo);

$width = imagesx($block_image);

$height = imagesy($block_image);

// create the destination/output image.

$img=imagecreatetruecolor( $width, $height );

// enable alpha blending on the destination image.

imagealphablending($img, false);

imagesavealpha($img,true);

// Allocate a transparent color and fill the new image with it.

// Without this the image will have a black background instead of being transparent.

//$transparent = imagecolorallocatealpha( $img, 255, 255, 255, 127 );

//imagefill( $img, 0, 0, $transparent );

// copy the thumbnail into the output image.

// imagecopyresampled($img,$block_image, 0, 0, 0, 0, $width, $height, $width, $height );

$files = glob('logo/tr/topisto_*.png');

usort($files, function($a, $b) {

  return filemtime($a) > filemtime($b);

});

if ($rank < 0)

{

  shuffle($files);

  $rank = 0;

}

// Borner l'index aux valeurs du tableau

$rank = $rank % count($files);

$superpose = @imagecreatefrompng($files[$rank]);

imagecopyresampled($img,$superpose, 0, 0, 0, 0, $width, $height, imagesx($superpose), imagesy($superpose));

imagedestroy($superpose);

imagecopymerge($img, $block_image, 0, 0, 0, 0, $width, $height, 45);

// ---

// --- envoyer l'image au navigateur

// ---

header("Content-Type: image/png");

imagepng($img);

imagedestroy($img);

imagedestroy($block_image);

?>