Extends the debug-bar plugin with additional tabs to measure runtimes between checkpoints and lookup variable content.

Debug-Bar-Extender

<p>This plugins adds more features to the debug-bar and is mainly aimed at developers who like to debug their code or want to measure runtimes to find glitches in their code.<br />
It also allows lookup of variables by adding simple code snippets in your source.</p>
<p>Please note that this plugin should be used solely for debugging or on a development environment and is not intended for use in a production site.</p>
<h3>Requirements</h3>
<p>This plugin requires <a href="https://wordpress.org/extend/plugins/debug-bar" rel="ugc">the debug-bar plugin &gt;0.5</a> and a developers&#8217; brain to work correctly.</p>
<h3>Usage</h3>
<h4>Usage example to debug the loop of a theme</h4>
<p>Add your checkpoints in the index.php or any other template file as shown below.</p>
<pre><code>&lt;?php if (have_posts()) : ?&gt;

&lt;?php Debug_Bar_Extender::instance()-&gt;checkpoint('loop start'); ?&gt;

&lt;?php while (have_posts()) : the_post(); ?&gt;

&lt;?php Debug_Bar_Extender::instance()-&gt;trace_var( $post ); ?&gt;

&lt;?php Debug_Bar_Extender::instance()-&gt;checkpoint('loop1'); ?&gt;

&lt;div &lt;?php post_class() ?&gt; id="post-&lt;?php the_ID(); ?&gt;"&gt;
&lt;?php //before_post(); ?&gt;
&lt;h2&gt;&lt;a href="&lt;?php the_permalink() ?&gt;" rel="bookmark" title="&lt;?php printf(__('Permanent Link to %s', 'kubrick'), the_title_attribute('echo=0')); ?&gt;"&gt;&lt;?php the_title(); ?&gt;&lt;/a&gt;&lt;/h2&gt;
&lt;small&gt;&lt;?php the_time(get_option('date_format')) ?&gt; by &lt;?php the_author() ?&gt;&lt;/small&gt;
&lt;div class="entry"&gt;
&lt;?php the_content(__('Read the rest of this entry &amp;raquo;', 'kubrick')); ?&gt;
&lt;/div&gt;
&lt;p class="postmetadata"&gt;&lt;?php the_tags(__('Tags:', 'kubrick') . ' ', ', ', '&lt;br /&gt;'); ?&gt; &lt;?php printf(__('Posted in %s', 'kubrick'), get_the_category_list(', ')); ?&gt; | &lt;?php edit_post_link(__('Edit', 'kubrick'), '', ' | '); ?&gt; &lt;?php comments_popup_link(__('No Comments &#187;', 'kubrick'), __('1 Comment &#187;', 'kubrick'), __('% Comments &#187;', 'kubrick')); ?&gt;&lt;/p&gt;
&lt;?php after_post(); ?&gt;
&lt;/div&gt;

&lt;?php Debug_Bar_Extender::instance()-&gt;checkpoint('loop2'); ?&gt;

&lt;?php endwhile; ?&gt;

&lt;?php Debug_Bar_Extender::instance()-&gt;checkpoint('loop end'); ?&gt;

&lt;div class="navigation"&gt;
&lt;div class="alignleft"&gt;&lt;?php next_posts_link(__('&amp;laquo; Older Entries', 'kubrick')) ?&gt;&lt;/div&gt;
&lt;div class="alignright"&gt;&lt;?php previous_posts_link(__('Newer Entries &amp;raquo;', 'kubrick')) ?&gt;&lt;/div&gt;
&lt;/div&gt;
&lt;?php else : ?&gt;
</code></pre>
<h3>Advanced usage</h3>
<p>Looking at the source of the debug-bar-extender.php you will notice that there are various filters to control the default settings. This is useful when you are working on a multisite install and want to use the debug bar without having to adjust the settings every time. Here&#8217;s an example of how settings enforced by a php file in mu-plugins/ could look like</p>
<pre><code>add_filter( 'debugbarextender_default_settings', 'my_debug_bar_extender_settings' );
// enforce debug bar settings
function my_debug_bar_extender_settings( $default_settings ) {
    $default_settings = array(
            'enable_profiler'               =&gt; 1,
            'enable_variable_lookup'        =&gt; 1,
            'track_default_vars'            =&gt; 0,
            'add_default_checkpoints'       =&gt; 1,
            'savequeries_debugmode_enable'  =&gt; 1,
            'use_error_log'                 =&gt; 0,
            'allow_url_settings'            =&gt; 1,
            'enable_admin_bar_menu'         =&gt; 1,
    );
    return $default_settings;
}

add_filter( 'debugbarextender_default_checkpoint_actions', 'my_debug_bar_extender_checkpoints' );
// initiate some default checkpoints
function my_debug_bar_extender_checkpoints( $default_checkpoints ) {
    $default_checkpoints = array(
                    'muplugins_loaded',
                    'wp_head',
                    'wp_footer',
                    'loop_start',
                    'loop_end',
                    'shutdown',
    );
    return $default_checkpoints;
}
</code></pre>
<h3>Wishlist</h3>
<p>This is a work in progress, so feel free to pass by on <a href="http://hitchhackerguide.com/wordpress-plugins/debug-bar-extender/" rel="nofollow ugc">our plugin page</a> and leave us<br />
your suggestions in the comments.</p>


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