# Back-End Development Published articles for Back-End Development. This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles. ## AI Chatbot Trained on Your WordPress Content: Setup Guide (RAG Explained) DevFeed: [AI Chatbot Trained on Your WordPress Content: Setup Guide (RAG Explained)]() Original publisher: [Read original article]() Author: Team WPShout Published: 2026-08-14T10:54:34Z Content type: tutorial Language: en Sources: [Back-End Development - WPShout]() Topics: [Retrieval Augmented Generation (RAG)](), [WordPress AI](), [AI Chat](), [WordPress](), [API](), [API keys](), [Open Source](), [PHP](), [GitHub](), [OpenAI]() Tags: [ai](), [api](), [back-end-development](), [chatbots](), [code](), [github](), [learn](), [open-source](), [openai](), [php](), [rag](), [wordpress](), [wordpress-ai](), [wordpress-plugins]() ### AI overview A guide explains retrieval-augmented generation (RAG) and shows how to set up the free Hyve Lite WordPress AI chatbot to answer questions using site posts and pages. It also describes prerequisites, API-key options, and limitations. ### Source excerpt Want a WordPress AI chatbot that answers from your own posts and pages? Learn how RAG actually works, then set up Hyve Lite free, limits and all. ## WordPress AI Connectors: A Developer's Guide to the 7.0 AI Client DevFeed: [WordPress AI Connectors: A Developer's Guide to the 7.0 AI Client]() Original publisher: [Read original article]() Author: Team WPShout Published: 2026-08-13T10:53:25Z Content type: tutorial Language: en Sources: [Back-End Development - WPShout]() Topics: [WordPress](), [WordPress AI](), [API](), [Large Language Model](), [SDK](), [PHP]() Tags: [anthropic](), [api](), [back-end-development](), [guide](), [llms](), [php](), [plugin](), [sdk](), [wordpress](), [wordpress-ai](), [wordpress-news]() ### AI overview A developer guide to WordPress 7.0's AI connectors and AI Client. It explains provider-agnostic LLM requests, API-key configuration, credential handling, provider plugins, and building a runnable example plugin. ### Source excerpt WordPress 7.0's AI connectors and wp_ai_client_prompt() give any plugin a provider-agnostic way to talk to LLMs. Learn the API and build a working plugin. ## PHP for Beginners: Starting on Backend WordPress Development DevFeed: [PHP for Beginners: Starting on Backend WordPress Development]() Original publisher: [Read original article]() Author: David Hayes Published: 2022-05-17T12:23:19Z Content type: tutorial Language: en Sources: [Back-End Development - WPShout]() Topics: [PHP](), [WordPress]() Tags: [back-end-development](), [backend](), [beginners](), [bing](), [but](), [can](), [content](), [content-management](), [content-management-system](), [development](), [here](), [internet](), [journey](), [kick](), [learn](), [let](), [let-s](), [management](), [more](), [php](), [wordpress](), [wps](), [wps-nf]() ### AI overview PHP powers WordPress server-side code and is essential for plugin development; theme work also uses it, though block themes rely mainly on HTML templates. The tutorial introduces PHP tags mixed with HTML, `echo`, comments, semicolons, strings and variables, reusable functions and return values, and `if`/`else` conditionals. It shows PHP's alternative colon-and-`endif` syntax as a way to make control flow clearer in HTML-heavy classic theme templates, then illustrates WordPress functions and markup in a theme example. It recommends building familiarity through hands-on WordPress coding and points beginners to further material on data types and programming paradigms. ### Source excerpt WordPress, the content management system the internet loves. You can use it for years without needing to tackle PHP, but eventually you're finding yourself needing it. You go to Bing and search "php for beginners" and you find yourself here. The journey to learn PHP for WordPress development is long, but let's start! We'll kick... Read More "PHP for Beginners: Starting on Backend WordPress Development ## How to Hire a PHP Developer for Web Projects DevFeed: [How to Hire a PHP Developer for Web Projects]() Original publisher: [Read original article]() Author: Neeraj Khosla Published: 2022-03-09T06:10:19Z Content type: tutorial Language: en Sources: [Our Latest Backend Development Insights]() Topics: [PHP](), [Back end](), [Web app](), [Scalability]() Tags: [back-end-development](), [backend-development](), [hiring-the-best-php-developer](), [php](), [php-back-end-development](), [requirements](), [scalability](), [skills]() ### AI overview This article explains PHP's role in web development and outlines considerations for hiring a PHP developer. It discusses PHP's open-source nature, scalability, performance, customization, updates, libraries, frameworks, and the skills needed for web projects. ### Source excerpt Hiring a talented PHP developer or a professional and experienced web agency is of utmost urgency to develop a modern and converting website. The post Important Tips To Hire PHP Developer appeared first on Orion. ## See Your WordPress Scheduled Tasks (Cron Jobs) DevFeed: [See Your WordPress Scheduled Tasks (Cron Jobs)]() Original publisher: [Read original article]() Author: David Hayes Published: 2019-10-24T17:11:46Z Content type: tutorial Language: en Sources: [Back-End Development - WPShout]() Topics: [WordPress](), [scheduling]() Tags: [back-end-development](), [backups](), [command](), [cron](), [dashboard](), [debugging](), [developer](), [events](), [hooks](), [how-to](), [install](), [jobs](), [manage](), [performance](), [run](), [scheduled](), [scheduled-tasks](), [tasks](), [wordpress](), [wps](), [wps-nf]() ### AI overview WP-CLI's `wp cron event list` shows scheduled WordPress tasks without installing a plugin. For a dashboard, install and activate WP Crontrol, then open Cron > Cron Events (the older Tools > Cron Events path also works) to view, edit, run, or pause hooks. The excerpt recommends it mainly for developers familiar with PHP. It describes removing no-op events, pausing persistent core events that WordPress reschedules, moving long jobs to quieter hours, investigating performance by disabling suspicious tasks, and manually triggering jobs for debugging. Rescheduling plugin and theme update checks may have limited effect because WordPress can also run them when an admin page loads if the previous check was over 12 hours ago. The author cautions against custom cron tasks as opaque to future developers. ### Source excerpt Sometimes, a developer will want to know why a WordPress site gets slow at a particular time, why their WP-Cron scheduled task isn't working, or want to force one to run at off time. Out of the box, WordPress doesn't make it easy to see your scheduled tasks. If WP-CLI is available on your server,... Read More "See Your WordPress Scheduled Tasks (Cron Jobs) ## PHP Foreach: All You Need to Know DevFeed: [PHP Foreach: All You Need to Know]() Original publisher: [Read original article]() Author: David Hayes Published: 2019-10-01T14:49:58Z Content type: article Language: en Sources: [Back-End Development - WPShout]() Topics: [PHP](), [iteration](), [conditionals]() Tags: [array](), [arrays](), [back-end-development](), [filter](), [flow](), [foreach](), [php](), [wps](), [wps-nf]() ### AI overview PHP `foreach` iterates through an array or an object's visible properties, making it useful for processing lists and key-value data. The excerpt shows basic iteration, collecting selected values by appending with `$array[]`, accessing keys and values with `as $key => $value`, and traversing arrays of arrays. It distinguishes `continue`, which skips the remaining work for the current item and moves to the next, from `break`, which ends the loop entirely. The article also contrasts `foreach` over an existing collection with `for` loops, which it presents as more suited to counting through a numeric sequence. It notes that classes can customize iteration with `Iterator` or `IteratorAggregate`, but does not cover those further. ### Source excerpt One of the most-used language constructs in my life with PHP is foreach. Partly, this is because it's just an exquisitely named language construct, and it maps well to how I think. Partly this is because it's kind of the backbone of a webpage: iterate through a set of things, operating on some selectively, and... Read More "PHP Foreach: All You Need to Know ## How to Deactivate a WordPress Plugin via FTP (When Your Site is Broken) DevFeed: [How to Deactivate a WordPress Plugin via FTP (When Your Site is Broken)]() Original publisher: [Read original article]() Author: Fred Meyer Published: 2019-07-02T15:32:52Z Content type: tutorial Language: en Sources: [Back-End Development - WPShout]() Topics: [WordPress](), [Filesystems](), [PHP]() Tags: [back-end-development](), [errors](), [files](), [how-to](), [php](), [plugin](), [plugins](), [server-administration](), [wordpress](), [wps](), [wps-nf]() ### AI overview A tutorial explains how to deactivate a WordPress plugin through FTP or another file-management tool when wp-admin is inaccessible. The main fix is to rename the problem plugin's folder so WordPress stops loading it, with guidance on recognizing plugin-related failures and handling cases where the responsible plugin is unknown. ### Source excerpt Your WordPress site is down. You can't access wp-admin. You're pretty sure a plugin caused it, but you can't get to the Plugins screen to deactivate anything. This is frustrating, but fixable. Here's how to forcibly deactivate a WordPress plugin using FTP when your admin dashboard won't load. The Quick Fix: Rename the Plugin Folder... Read More "How to Deactivate a WordPress Plugin via FTP (When Your Site is Broken) ## Learning PHP: Concatenate Strings and Variables Efficiently DevFeed: [Learning PHP: Concatenate Strings and Variables Efficiently]() Original publisher: [Read original article]() Author: David Hayes Published: 2019-06-04T17:42:36Z Content type: article Language: en Sources: [Back-End Development - WPShout]() Topics: [PHP](), [concatenation](), [Tutorial]() Tags: [back-end-development](), [efficiently](), [php](), [strings](), [variables](), [wps](), [wps-nf]() ### AI overview PHP concatenates strings with the `.` operator, which joins quoted strings and variables; simple numbers are converted to strings automatically, while arrays and objects need extra work. Double-quoted strings can interpolate variables directly, including with braces for clarity, while single-quoted strings require concatenation. The text says interpolation's performance overhead is small and benchmark differences from concatenation are negligible and expression-dependent. The `.=` operator appends to an existing string. The author recommends using concatenation thoughtfully: templates are often better for assembling HTML than building large HTML strings in code. ### Source excerpt A slightly weird term you'll hear people use around PHP: "concatenate." I still remember the first time I heard that word, having no earthly idea what it meant. It turns out it was a common and useful task in PHP: join two strings together so that we get a single string or something that we... Read More "Learning PHP: Concatenate Strings and Variables Efficiently ## Understanding PHP Globals and Variable Scope in WordPress DevFeed: [Understanding PHP Globals and Variable Scope in WordPress]() Original publisher: [Read original article]() Author: David Hayes Published: 2019-04-02T13:03:01Z Content type: article Language: en Sources: [Back-End Development - WPShout]() Topics: [PHP](), [WordPress](), [Variable]() Tags: [array](), [back-end-development](), [echo](), [global](), [globals](), [php](), [scope](), [variable](), [variables](), [wordpress](), [wps](), [wps-nf]() ### AI overview PHP variables declared inside functions are local; variables declared outside functions are global unless their file is included from within a function. Inside a function, `global $name` or `$GLOBALS['name']` accesses or assigns a global, while passing a value as a parameter avoids that shared-state dependency. In WordPress, template parts loaded through `load_template()` receive globals such as `$post` and `$wp_query`; the main template is included at file scope. Template tags and the Loop commonly rely on WordPress's global post and query objects. Globals make application data easy to share, but changes elsewhere can unexpectedly break code, so the excerpt favors parameters where practical while noting WordPress's continued reliance on globals. ### Source excerpt One of the most maligned features of WordPress is the use of "PHP global variables." Whether you love them or hate them, thoughm global variables probably aren't leaving WordPress soon. So today we'll cover all there is to know about WordPress's PHP globals: how to think about them; how to make variables global in PHP;... Read More "Understanding PHP Globals and Variable Scope in WordPress ## Learning PHP for WordPress Development: How to Include PHP in HTML DevFeed: [Learning PHP for WordPress Development: How to Include PHP in HTML]() Original publisher: [Read original article]() Author: Fred Meyer Published: 2019-03-26T15:14:33Z Content type: article Language: en Sources: [Back-End Development - WPShout]() Topics: [PHP](), [HTML](), [Web Development](), [Tutorial](), [Learning](), [WordPress]() Tags: [back-end-development](), [how-to](), [html](), [include](), [php](), [wordpress](), [wps](), [wps-nf]() ### AI overview By default, PHP runs in `.php` files, while PHP code in `.html` files is served as literal text unless the server is configured to process it. A `.php` file can also contain plain HTML. The examples show switching between HTML and PHP with ``, using `echo` to produce markup or insert values, and placing HTML inside functions, loops, and conditionals. Such HTML is sent to the browser when its PHP control flow executes; variables and function declarations remain available across PHP tag sections. A `while` loop can repeat markup and insert changing values, a pattern the article connects to WordPress's Loop. In WordPress, the text distinguishes custom PHP and classic templates in `.php` files from block theme templates in `.html` files. ### Source excerpt Welcome to this article on how to use PHP in HTML! Here, we try to get specific about exactly how PHP and HTML interact, at the level of a specific .php file. In other words, how do you actually include PHP in HTML, and what rules can and can't you follow in weaving PHP and HTML... Read More "Learning PHP for WordPress Development: How to Include PHP in HTML ## The Four Languages You Must Know to Understand WordPress DevFeed: [The Four Languages You Must Know to Understand WordPress]() Original publisher: [Read original article]() Author: David Hayes Published: 2019-03-05T15:15:14Z Content type: article Language: en Sources: [Back-End Development - WPShout]() Topics: [WordPress](), [JavaScript](), [Programming](), [Learning](), [Tutorial](), [Web platform](), [if statement]() Tags: [back-end-development](), [css](), [development](), [front-end-development](), [javascript](), [languages](), [learning](), [php](), [programming-languages](), [wordpress](), [wordpress-programming-language](), [wps](), [wps-nf]() ### AI overview WordPress development uses HTML and CSS as the markup and styling foundation, PHP for server-side WordPress behavior, and JavaScript for browser-side interactivity. The article recommends learning HTML and CSS first, then PHP: WordPress core, plugins, and classic themes primarily use PHP, and custom server-side features rely on it. Block themes can use HTML templates, but still run on WordPress's PHP engine. JavaScript is optional to get started and is useful for richer interactions; the block editor and some features, including the Interactivity API, require it. The article suggests learning JavaScript later, once PHP work exposes needs it cannot address. ### Source excerpt Learning WordPress development starts with a lot of key questions, including this one: "What language is WordPress written in?" Another common one is "Should I learn PHP or JavaScript first?" WordPress programming languages is a big topic, but we'll cover all you need to get started. The answer to "What coding language does WordPress use?"... Read More "The Four Languages You Must Know to Understand WordPress ## The Many Uses of PHP Output Buffering in WordPress DevFeed: [The Many Uses of PHP Output Buffering in WordPress]() Original publisher: [Read original article]() Author: David Hayes Published: 2018-04-03T14:05:11Z Content type: article Language: en Sources: [Back-End Development - WPShout]() Topics: [PHP](), [WordPress](), [IO]() Tags: [api](), [back-end-development](), [buffer](), [content](), [html](), [introduction](), [php](), [wordpress](), [wps](), [wps-nf]() ### AI overview PHP output buffering captures content that would otherwise be printed and lets code store, modify, discard, or return it. In WordPress shortcodes, this lets a function include an HTML/PHP template that uses output-producing template tags, then return the captured markup at the shortcode's location; the example also resets post data afterward. For a `the_content` filter, buffering lets the function write lengthy HTML directly, capture it, and append it to the content it returns. The article describes widgets as a less compelling use: widget methods can echo templates directly, so buffering is mainly useful when their output needs complex manipulation. `ob_get_clean()` retrieves the buffer, clears it, and turns it off; captured output is a string, so type conversion may need attention. ### Source excerpt This introduction to PHP output buffering and its uses in WordPress contains a few helpful resources: A first code demo that shows how PHP output buffering is helpful for WordPress shortcodes. A second code demo that shows how PHP output buffering can help create complex the_content filters that use readable HTML output. A simple child... Read More "The Many Uses of PHP Output Buffering in WordPress ## Mastering the WordPress Options API DevFeed: [Mastering the WordPress Options API]() Original publisher: [Read original article]() Author: David Hayes Published: 2017-05-16T11:00:55Z Content type: tutorial Language: en Sources: [Back-End Development - WPShout]() Topics: [WordPress](), [API](), [configuration](), [Database](), [Code]() Tags: [api](), [back-end-development](), [code](), [configuration](), [database](), [wordpress](), [wps](), [wps-nf]() ### AI overview A tutorial on WordPress's Options API, explaining how site options store global configuration data and how to retrieve, create, update, and remove options. It also covers default values, serialized arrays and objects, and the distinction between update_option() and add_option(). ### Source excerpt WordPress needs a way to store small bits of sitewide data--things like your site title, admin email, or custom color schemes. That's what the Options API handles. It's one of those WordPress features that seems almost too simple at first, but you'll use it constantly once you understand it. What Are Site Options? Site options... Read More "Mastering the WordPress Options API