PHP Debugging: Essential Methods & Tips

There are various methods for debugging PHP programs, with common ones including:

1. Use the var_dump() function to print the contents of a variable in order to check if its value is correct.
2. Use the echo or print statement in the program to see which step the program is running to.
3. Terminate program execution using the die() or exit() function, and output a specific message to identify the step at which the program stopped running.
4. Use the error_reporting() function to set the error reporting level in order to view error information in the program.
5. Use the try…catch statement to catch exceptions and log error messages.
6. Utilize debugging tools like Xdebug for remote debugging and analyzing program execution.
7. Utilize a logger like the error_log() function to record error messages to a file for future analysis.
8. Utilize debugging tools like Xdebug or Zend Debugger to set breakpoints and step through the program, observing variable values and program flow.