How can a PHP developer effectively troubleshoot and debug color assignment issues in their code?

To troubleshoot color assignment issues in PHP, a developer can start by checking the syntax of the color values being assigned. They should ensure that the color values are in the correct format (e.g., hexadecimal, RGB, or color name). Additionally, they can use functions like "echo" or "var_dump" to output the color values and check if they are being assigned correctly.

$color = "#FF0000"; // Assigning a hexadecimal color value
echo $color; // Output the color value to check if it is assigned correctly