Is it possible for a single script to generate multiple images (bars) with different parameters and display them at different locations on a webpage?

Yes, it is possible for a single script to generate multiple images with different parameters and display them at different locations on a webpage. This can be achieved by using PHP's image manipulation functions to create the images with the desired parameters, and then using HTML to position and display the images on the webpage.

<?php
// Create image 1
$image1 = imagecreate(200, 50);
$bgColor1 = imagecolorallocate($image1, 255, 255, 255);
$textColor1 = imagecolorallocate($image1, 0, 0, 0);
imagestring($image1, 5, 10, 10, 'Image 1', $textColor1);

// Create image 2
$image2 = imagecreate(200, 50);
$bgColor2 = imagecolorallocate($image2, 255, 255, 255);
$textColor2 = imagecolorallocate($image2, 0, 0, 0);
imagestring($image2, 5, 10, 10, 'Image 2', $textColor2);

// Output image 1
header('Content-type: image/png');
imagepng($image1);
imagedestroy($image1);

// Output image 2
header('Content-type: image/png');
imagepng($image2);
imagedestroy($image2);
?>