I am writing some plugins and themes for WordPress, and I finding it hard to debug because somehow by the time the page has loaded, $_GET, $_POST and $_REQUEST are all empty. Even with error reporting set on, I am not getting error messages either other than a blank page whenever there is a fatal error. Is there anyway to enable a 'debug mode' for WordPress?
Thanks!
Pear Debug Wordpress plugin: http://wordpress.org/extend/plugins/wp-pear-debug/
Update 4/08/2015: The above plugin hasn't been updated in a few years. You can also use the built-in WordPress PHP debugging functions in wp-config.php , i.e.:
// Enable WP_DEBUG mode
define('WP_DEBUG', true);
// Enable Debug logging to the /wp-content/debug.log file
define('WP_DEBUG_LOG', true);
// Disable display of errors and warnings
define('WP_DEBUG_DISPLAY', false);
@ini_set('display_errors',0);
// Use dev versions of core JS and CSS files (only needed if you are modifying these core files)
define('SCRIPT_DEBUG', true);
See https://codex.wordpress.org/Debugging_in_WordPress for the complete docs
set_exception_handler gist.github.com/kaorukobo/795d43c9a594b021c2d09fffd2935b37 helped this problem.
There's (more than one/) a way to enable "a 'debug mode'" for php in general. And that's installing a debugger extension like e.g. xdebug.
You need a client that connects to the debugger and retrieves+displays the information.
Netbeans 6.7 has been released and its php module supports xdebug. It has become a nice IDE for PHP development.
I know this has long been answered, but if you define('WP_DEBUG',true); in your wp-config.php and are still not seeing errors, then add this code right after the define statement:
if (WP_DEBUG) ini_set('display_errors',1);
Look at WordPress FirePHP Debugger (spam link removed). It uses FirePHP for debugging wordpress via the web browser.
Main features:
