What debugging techniques can be used in PHP to track variables and troubleshoot session storage issues?

To track variables in PHP and troubleshoot session storage issues, you can use techniques such as printing variable values, using error_log to log messages, and checking session data using session_save_path. Example PHP code snippet: 

// Print variable values for debugging
$variable = "Hello";
echo $variable;

// Log messages to error log
error_log("An error occurred");

// Check session save path for troubleshooting session storage issues
echo session_save_path();

Keywords

Xdebug var_dump print_r $_SESSION error_log

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