How Do I Debug a Plugin?

  • Resolved b-rad

    (@b-rad)


    13 years, 5 months ago

    I’m trying to get my feet wet and learn how to create a WP plugin but I don’t see any way to get some basic debug info to show up. I’ve set define( ‘WP_DEBUG’, true ); in my wp-config.php file but all I see are messages like:

    The plugin generated 309 characters of unexpected output during activation. If you notice “headers already sent” messages, problems with syndication feeds or other issues, try deactivating or removing this plugin.

    when I activate my test plugin. How can I get more detail including things like the 309 characters Wp tells me it sees?

Viewing 5 replies - 1 through 5 (of 5 total)
  • elfin

    (@elfin)

    13 years, 5 months ago

    Sometimes you can’t get more details, depends on what is causing the error.

    I’d also suggest using define( 'WP_DEBUG_LOG', true ); as well.

    Thread Starter b-rad

    (@b-rad)

    13 years, 5 months ago

    Wow, can’t get more details? That seems pretty limiting. Like trying to code with your hands behind your back. I checked out http://codex.wordpress.org/Editing_wp-config.php which says to try changing the config file to:

    define(‘WP_DEBUG’, true);
    define(‘WP_DEBUG_LOG’, true);
    define(‘WP_DEBUG_DISPLAY’, false);
    @ini_set(‘display_errors’,0);

    but my log file gets no errors. This is frustrating. There has to be a better way to create a plugin, especially one that deals with db tables.

    Thread Starter b-rad

    (@b-rad)

    13 years, 5 months ago

    Progress made. I changed my config file to:

    define(‘WP_DEBUG’, true);
    define(‘WP_DEBUG_LOG’, true);
    define(‘WP_DEBUG_DISPLAY’, true);
    @ini_set(‘display_errors’,0);

    and put a debug.log file in my wp-content folder and made it writable by the web server and now I’m actually catching errors.

    elfin

    (@elfin)

    13 years, 5 months ago

    did you manage to solve the issue?

    Thread Starter b-rad

    (@b-rad)

    13 years, 5 months ago

    Yeah, this should do the trick.

Viewing 5 replies - 1 through 5 (of 5 total)
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