What potential issues can arise when trying to print tables with colored backgrounds using PHP?

When trying to print tables with colored backgrounds using PHP, one potential issue that can arise is that the colors may not display correctly or at all when printed. This is because some browsers or printer settings do not support printing background colors by default. To solve this issue, you can use a CSS style sheet to define the colors for the table backgrounds and set the `background-color` property to `transparent` in the print media query to ensure that the colors are visible when printed. 

<style>
    table {
        background-color: red; /* Set table background color */
    }
    
    @media print {
        table {
            background-color: transparent; /* Set table background color to transparent for printing */
        }
    }
</style>

Keywords

HTML CSS PHP GD library table background color

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