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June 16, 2014 07:48
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Debugging WordPress
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<?php | |
/** | |
* Debugging WordPress things. | |
* | |
* All of this belongs in your wp-config.php file. | |
* | |
* This will make sure that the code you release is, at a minimum, | |
* relatively free of PHP notices and warnings. | |
* | |
* - WP_DEBUG: This turns on debugging mode. | |
* @link http://codex.wordpress.org/Debugging_in_WordPress#WP_DEBUG | |
* - SCRIPT_DEBUG: Use the development scripts that have been shipped with | |
* WordPress, not the minimized and concatenated scripts. This helps with | |
* easier script readability and debugging. There are also cases when a | |
* minified or concatenated scripts triggers an issue, but the development | |
* version of the script does not. Toggling this will help you figure out what's | |
* going on when scripts seem not to be going your way. | |
* @link http://codex.wordpress.org/Debugging_in_WordPress#SCRIPT_DEBUG | |
* - WP_DEBUG_DISPLAY: Don't display debug output inside the HTML of your page. You | |
* can certainly keep this turned on, but if you're running a site in production | |
* and also want to run your site in debugging mode at the same time, then you do | |
* not want those messages popping up for site visitors. If you're in a development | |
* environment, then turning this off or on doesn't matter as much as making sure | |
* that you're logging errors somewhere to be able to see them. | |
* @link http://codex.wordpress.org/Debugging_in_WordPress#WP_DEBUG_DISPLAY | |
* - WP_DEBUG_LOG: This will save all errors into a file called debug.log, which is | |
* located in wp-content/debug.log. This is the most overlooked, most useful constant | |
* when it comes to debugging. Because your eyes cannot see an error doesn't mean that | |
* something bad isn't happening on your site. My advice is to turn off debug display, | |
* log the debugging to debug.log, and always keep a window open in your code editor | |
* that has the file debug.log open and in plain view. When you're coding, flip between | |
* the files that you're working on and debug.log often to make sure that things are okay. | |
* The most common errors are those that are very simple to fix, things like making | |
* sure that variables are set before checking their values, and things like | |
* not passing enough arguments to a hook. | |
* @link http://codex.wordpress.org/Debugging_in_WordPress#WP_DEBUG_LOG | |
* - JETPACK_DEV_DEBUG: Put Jetpack into development mode so that you don't rely | |
* on a connection to WordPress.com to use Jetpack in localhost or on a production site. | |
* @link http://jetpack.me/2013/03/28/jetpack-dev-mode-release/ | |
* - SAVEQUERIES: I don't use this often, but I should. | |
* @link: http://codex.wordpress.org/Debugging_in_WordPress#SAVEQUERIES | |
*/ | |
define('WP_DEBUG', true); | |
define('SCRIPT_DEBUG', true); | |
define('WP_DEBUG_DISPLAY', false); | |
define('WP_DEBUG_LOG',true); | |
define('JETPACK_DEV_DEBUG', 'true'); | |
/** | |
* Sometimes on localhost there seem to be memory issues. | |
* These may or may not help you. I use them, but if you find that | |
* running WordPress on localhost is fine, and you don't run into memory issues, | |
* then you'll probably be able to safely ignore this. | |
* @link http://codex.wordpress.org/Editing_wp-config.php#Increasing_memory_allocated_to_PHP | |
*/ | |
define('WP_MEMORY_LIMIT', '1000M'); | |
define('WP_MAX_MEMORY_LIMIT', '2000M'); |
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LOVE the Jetpack dev debug mode! I'm trying this right now.
Cheers!