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Category Archives: Code Snippet

How to increase Max Input Vars on GoDaddy shared hosting account

When setup some of the WordPress themes, you may see Maximum Input Vars notification. It asks you to increase Max Input Vars in your host to be able to use the theme. After searching for help, you may find several options. But in my case for a WordPress installation on GoDaddy shared hosting account, only one works.

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Disable WordPress Author Pages

Author page is part of WordPress by default. Without manual change, author page URL exposes user login username. From SEO point of view, it may also create duplicated content. For blog website, author page is useful when there are multiple authors. For non-blog site, especially for site without no blog post, it is good idea to disable the access to author page.

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WooCommerce Template Customization: Mobile Responsive Product Quantity Input Template

Although WooCommerce default page templates are mobile responsive overall, further polish is required to match the theme for each specific project. In one of my latest projects, I ran into the problem with default WooCommerce product quantity input box. It is designed for desktop browser, using a mouse and / or keyboard as input device. On mobile device, especially smartphone, changing product quantity can be fussy.

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WooCommerce Subscriptions Customization: Restore Additional Profile Field Added by PMP Register Helper

Can’t find a good title for this one. Here is the background. On a membership website, the membership feature was achieved by using Paid Membership Pro (PMP) plugin. An extra profile field was added using PMP Register Helper. Few months ago, a WooCommerce online store integration project brought in WooCommerce Subscriptions plugin to replace the membership purchase and recurring billing function which were provided by PMP. If you happen to be on the same boat, you know exactly what happens: The PMP check out page is replaced by WooCommerce checkout page. The additional profile filed is also bypassed.

The task: to restore the additional profile field using WooCommerce filter & hook.

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BackWPup: SSL3_GET_SERVER_CERTIFICATE: certificate verify failed

I backup database daily, and send multiple copies to different locations. One is my Amazon S3 bucket for backups. If backup task failed, a notification email will be sent to me. And I am getting notification email of this sort recently, constantly from one website. One time isolated failure can be ignored for temporary cause (bad connection for example), not continuous failures.

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How to Create a WordPress Plugin

Plugins are ways to extend and add to the functionality that already exists in WordPress. We don’t have to be a dedicated plugin developer to write WordPress plugin. There are situation where we need to alter some existing functions, or add some features to existing site. You may learn from various resources that, to add this, you need to drop code snippet to function.php. The fact is, making changes to function.php isn’t always the best solution.

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Dynamically Populate a Select field from Custom List

When we start using Custom Post Type & Custom Field to enrich our WordPress website, to meet various real world situation, building relationship between different datasets becomes a common practice. A simple example, is project & client relationship. If we manage this in database, we always link client to project using client ID, because client may repeat in multiple projects. If we use Custom Post Type to manage project and client in WordPress, the challenge is: how do we dynamically populate a latest client list into a client choices for a project?

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Take Control of Post Revisions

WordPress revisions system saves a record of each saved draft or published update. This feature is important to site owners, because it provides some sort of “backup” for the content in case you accidentally edit posts the wrong way. By default, WordPress saves every copy of revision when you click Save button. All the revision copies take up room in database, will eventually slow down the query time, especially on sites with many blogs.

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Quick Fix for Working with Absolute Path on Temporary URL

Can’t think of a better title, here is the scenario: After creating a new account at hosting service provider, we are normally assigned a temporary URL before link this hosting account to domain of final production site, for example: http://hostingserver.com/~username. Sometimes, we have to work on the temporary URL through development stage before site goes live for various reasons. The temporary URL creates temporary trouble to some not well-written code in case “absolute path” is used in either themes, plugins, or existing site. The trouble can be either broken links, or missing images.

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