<?php
 
/* The object used as a canvas */
//$canvas = new imagick( "bg.jpg" );
//$canvas->adaptiveResizeImage( 400,400 );

$canvas = new Imagick();
$canvas->newImage( 500, 
                   500, 
                   new ImagickPixel( "transparent" ) );
$canvas->setImageFormat( "png" );
 
/* paths to the images */
//$paths = array( "chev7.jpg", "myfrog.jpg", "strawberry.jpg", "Image32.jpg" );
$paths = array();
$d = dir('.');
while ($file = $d->read())
{
    if (preg_match('!^p.*\.jpg$!', $file))
        $paths[] = $file;
}
$d->close();

shuffle($paths);
$paths = array_slice($paths, 0, 5);
 
/* Create an empty ImagickDraw object
    (Use the defaults for the polaroid) */
$bg = new ImagickDraw();

/* Create a few random images */
$images = new Imagick( $paths );
 
/* Loop trough images, overlay on canvas and remove the image */
foreach ( $images as $key => $image )
{
    /* Thumbnail to 100x width and set background to black.
            It looks like an drop-in shadow  */
    $image->thumbnailImage( mt_rand(100, 200), null );
    $image->setImageBackgroundColor( new ImagickPixel( "black" ) );
    
    /* Use a random angle */
    $angle = mt_rand( -45, 45 );
 
    if ( mt_rand( 1, 2 ) % 2 === 0 )
    {   
        $angle = $angle * -1;
    }
 
    /* Create the polaroid */
    $image->polaroidImage( $bg, $angle );
 
    /* Composite the polaroid over the canvas */
 
        /* Composite to a random location */
    $canvas->compositeImage( $image, Imagick::COMPOSITE_OVER, 
                               mt_rand( 10, 150 ), mt_rand( 10, 150 ) );
    
    /* Free some resources */
    $image->removeImage();
}
 
$canvas->trimImage( 0 );

/* Display the image */
header( "Content-Type: image/png" );
echo $canvas;
 
?>