# PHP Debugging Notes

# PHP Debugging Notes

- `defined`
- `var_dump`
- `var_export`
- `print_r`
- `debug_backtrace`
- `debug_print_backtrace`
- `function_exists`
- `get_defined_constants`
- `get_defined_functions`
- `get_defined_vars`
- `get_included_files`
- `assert`
- `get_cfg_var`
- `getenv`
- `ini_get_all`
- `phpinfo`
- `php_ini_scanned_files`
- `phpversion`
- `sleep`
- `error_log`

Add List of Functions Useful when Debugging
Add List of Functions Useful when Debugging