How can CSS be utilized to hide unwanted characters, such as brackets, when inserting images in PHP code?

To hide unwanted characters like brackets when inserting images in PHP code, you can use CSS to style the output. By setting the image as a background and hiding the text content, you can effectively remove any unwanted characters from being displayed.

<div style="background-image: url('image.jpg'); width: 100px; height: 100px; text-indent: -9999px;">Image description</div>