How can debugging tools like var_dump help in identifying issues with variable concatenation in PHP?

When concatenating variables in PHP, it's important to ensure that the variables are of the expected type (e.g., string, integer) to avoid unexpected results. Using var_dump can help identify the data types of variables and pinpoint any issues with concatenation. By using var_dump to inspect the variables before and after concatenation, developers can easily spot any inconsistencies or errors in their code.

$var1 = "Hello";
$var2 = 123;

// Concatenating variables with var_dump for debugging
var_dump($var1 . $var2);