Error Handling Functions

• debug_backtrace — Generates a backtrace
• debug_print_backtrace — Prints a backtrace
• error_clear_last — Clear the most recent error
• error_get_last — Get the last occurred error
• error_log — Send an error message to the defined error handling routines
• error_reporting — Sets which PHP errors are reported
• restore_error_handler — Restores the previous error handler function
• restore_exception_handler — Restores the previously defined exception handler function
• set_error_handler — Sets a user-defined error handler function
• set_exception_handler — Sets a user-defined exception handler function
• trigger_error — Generates a user-level error/warning/notice message
• user_error — Alias of trigger_error