The imagexbm() function is an inbuilt function in PHP which is used to display image to browser a file. The main use of this function is to view an image in the browser and convert any other image type to XBM. Syntax:

bool imagexbm( resource $image, int $to, int $foreground)

Parameters: This function accepts three parameters as mentioned above and described below:

• $image: It specifies the image resource to work on.
• $to (Optional): It specifies the path to save the file to.
• $foreground (Optional): It specifies the foreground of the image.

Return Value: This function returns TRUE on success or FALSE on error. Below examples illustrate the imagexbm() function in PHP: Example 1: In this example we will be downloading an image in browser.

<?php

// Load an xbm image from local folder
// Image can be converted into xbm using
// online convertors or imagexbm()
$im = imagecreatefromxbm('geeksforgeeks.xbm');

// Download the image
header('Content-Type: image/xbm');
imagexbm($im);
imagedestroy($im);
?>

Output:

This will download your image as download, 
further you can rename this file to anything like 
geeksforgeeks.xbm and use it.

Example 2: In this example we will convert PNG into XBM.

<?php

// Load an image from PNG URL
$im = imagecreatefrompng(
'https://media.geeksforgeeks.org/wp-content/uploads/geeksforgeeks-13.png');

// Convert the image into XBM using imagexbm() function
imagexbm($im, 'converted.xbm');
imagedestroy($im);
?>

Output:

This will save the XBM version of image in the same 
folder where your PHP script is.

Reference: https://www.php.net/manual/en/function.imagexbm.php