Fumiki Takahashi

TAROSKY INC.

Kunoichi INC

Have you ever seen an error log like the one below?
<blockquote>
PHP Fatal error: Allowed memory size of xxxxxx bytes exhausted (tried to allocate xxx bytes) in /var/www/wordpress/wp-includes/wp-db.php on line 2007
</blockquote>
This means that <a href="https://www.php.net/manual/en/ini.core.php#ini.memory-limit" rel="nofollow ugc">PHP memory limit</a> is exhausted while retrieving data from a database. In any case, this happens when your site has big data and makes insane loops inside.
But we want to know that which plugin tried to retrieve data?
Hagakure adds extra information to error.log file when <code>wp-db.php</code> causes memory limit error:
<pre>[08-May-2019 10:28:37 UTC] wpdb Error Backtrace:
#1 Kunoichi\Hagakure\DbLogger->filter_query() /app/public/wp-includes/class-wp-hook.php Line 286
#2 WP_Hook->apply_filters() /app/public/wp-includes/plugin.php Line 208
#3 apply_filters /app/public/wp-includes/wp-db.php Line 1871
#4 wpdb->query() /app/public/wp-includes/wp-db.php Line 2579
#5 wpdb->get_results() /app/public/wp-includes/class-wp-query.php Line 2979
#6 WP_Query->get_posts() /app/public/wp-includes/class-wp-query.php Line 3387
#7 WP_Query->query() /app/public/wp-includes/post.php Line 1961
#8 get_posts /app/public/wp-content/plugins/hagakure/hagakure.php Line 34
#9 {closure} /app/public/wp-includes/class-wp-hook.php Line 286
#10 WP_Hook->apply_filters() /app/public/wp-includes/class-wp-hook.php Line 310
#11 WP_Hook->do_action() /app/public/wp-includes/plugin.php Line 465
#12 do_action /app/public/wp-includes/template-loader.php Line 13
#13 require_once /app/public/wp-blog-header.php Line 19
#14 require /app/public/index.php Line 17
#15 URI: /?p=1</pre>
This log will always follow the memory limit Fatal Error by <code>wp-db.php</code>. Now you can find <code>#8</code> calls <code>get_posts</code> repeatedly.
We recommend watching logs with notification services like <a href="https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/WhatIsCloudWatchLogs.html" rel="nofollow ugc">CloudWatch Logs</a>. 
This error occurs in the productional environment, and you may not have a chance to see it occurs. 
We use Hagakure with our <a href="https://hosting.kunoichiwp.com/" rel="nofollow ugc">hosting service</a>, please look forward to seeing <a href="https://kunoichiwp.com/blog" rel="nofollow ugc">our blog published</a> and describing the integration!
This plugin also adds debug backtrace to error logs. To modify the error level to a detailed backtrace, define the constant in <code>wp-config.php</code> or somewhere else:
<pre>define( 'HAGAKURE_ERROR_LEVEL', E_NOTICE | E_USER_WARNING | E_WARNING | E_USER_ERROR );</pre>
Besides that, if <code>SAVEQUERIES</code> is set <code>true</code>, the slow query log will be logged with PHP debug backtrace. This helps you to debug.
<h3>Acknowledgements</h3>
The base text for dummy content is “Three Ghost Story” by Charles Dickens. The text file is modified the one of <a href="https://www.gutenberg.org/ebooks/1289" rel="nofollow ugc">Project Gutenberg</a>.

Hagakure – Yet Another Error Reporter

This plugin makes it easy to find the root cause of PHP Fatal error: Allowed memory size of xxxxxx bytes exhausted error. AWESOME.


Great

Looks good

A WordPress plugin to clarify meaningless errors like "Allowed memory size of xxxxxxxx bytes exhausted".

Lee Willis

Cart recovery for WordPress brings abandoned cart recovery and tracking to your WordPress store. Here’s what you can expect from Cart recovery for WordPress:
<ul>
<li>Tracks customer names and emails as soon as they’re entered at checkout</li>
<li>Automated cart recovery emails & cart re-population</li>
<li>Includes easy to use stats inside WordPress</li>
<li>WooCommerce, WP e-Commerce, Easy Digital Downloads and Restrict Content Pro compatibility out-of-the-box</li>
<li>Track abandoned carts, view stats in your WordPress dashboard, and configure automatic recovery email sending</li>
<li>Integrates with WordPress’ GDPR compliance tools for data access and data removal requests</li>
</ul>
Find out more at: <a href="https://wp-cart-recovery.com/" rel="nofollow ugc">wp-cart-recovery.com</a>
Pro version also available from <a href="https://wp-cart-recovery.com/" rel="nofollow ugc">wp-cart-recovery.com</a> that includes:
<ul>
<li>Ability to generate and include dynamic per-customer discount codes</li>
<li>Flexible email timing – choose when to send your emails</li>
<li>Multiple emails – send a schedule of emails – not just one</li>
<li>View details of carts in the recovery process</li>
<li>Export abandoned cart details for separate follow-up</li>
<li>View detailed interaction history of individual carts</li>
</ul>
<h3>Treeware</h3>
You’re free to use this package for free, but if it makes it to your production environment please <a href="https://ecologi.com/ademtisoftware?gift-trees" rel="nofollow ugc">buy the world a tree</a>.

Cart recovery for WordPress

I build a lot of websites for numerous clients and I make sure they have the free one as a default, and if they really want to up their eCommerce game, we go with the Pro version, adds quite a lot of flexibility so worth a look. It tracks which ones it has recovered, and there is always a recovered cart on there which is amazing, to think that otherwise we'd have lost that sale.

The developer is on hand for any questions and is super friendly and helpful. 

Great plugin, highly recommended. 

I use it on all my eCommerce sites

Cart recovery for WordPress brings abandoned cart recovery and tracking to your WordPress store.

Hagakure – Yet Another Error Reporter vs Cart recovery for WordPress