What are common debugging techniques for identifying errors in PHP code?

Common debugging techniques for identifying errors in PHP code include using error reporting functions like error_reporting(E_ALL) to display all errors, checking for syntax errors by using an online PHP syntax checker, using print_r() or var_dump() functions to inspect variables and data structures, and using step-by-step debugging tools like Xdebug.

error_reporting(E_ALL);

// Your PHP code here