How can a PHP developer effectively utilize debugging tools or techniques to troubleshoot data transfer issues in their code?

To effectively troubleshoot data transfer issues in PHP code, a developer can utilize debugging tools like Xdebug or built-in functions like var_dump() or print_r() to inspect variables and data structures during runtime. By examining the output of these tools, developers can identify any inconsistencies or errors in the data being transferred and pinpoint the source of the issue.

// Example code snippet demonstrating the use of var_dump() for debugging data transfer issues

$data = fetchDataFromDatabase();

// Debugging the data transfer process
var_dump($data);

// Further code logic to process the data