How can the use of PHP functions like var_dump() help in troubleshooting issues with variable values in code?

When troubleshooting variable value issues in PHP code, using functions like var_dump() can help by providing detailed information about the variable's data type and value. This can help identify any unexpected or incorrect values assigned to variables, allowing for easier debugging and fixing of the issue.

$variable = "Hello, World!";
var_dump($variable);