A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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The wp_editor() function allows plugin and theme developers to render a custom instance of the TinyMCE editor used by WordPress
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a wrapper for PHPMailer which is a wrapper for PHP’s mail() function.
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off topic, support questions should be asked on the plugin's author support page. Contact Form 7 can manage multiple contact forms, plus you can customize the form a…
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a set of command-line tools for managing WordPress installations. You can update plugins, set up multisite installs and much more, without using a web browser.
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Basic techniques on debugging WordPress that can assist you on first hand.
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Provides a simple login form for use anywhere inside your theme or plugin (in public/guest facing requests).
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From PHP-FPM, MySQL, MariaDB, Apache, Nginx and Lighttpd to other servers that allow to host and run WordPress. If you can remove "WordPress" from the question, your question probably is better asked …
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The home page of a site. Could either contain the blog index, or a static page.
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A unique identifier.
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server software often used to host WordPress on. Questions about Apache itself are off topic.
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Wordpress supports several methods to include content from other sites in your site using its own API.
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Saving data for posts, pages, custom post types, comments, custom fields, categories, tags, custom taxonomies, and users. Usually used to migrate to another hosting or add data to another WordPress we…
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A way of arranging items where an item can be a parent or child of another. Categories are an example of a hierarchical taxonomy.
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outputs a complete commenting form for use within a template. Most strings and form fields may be controlled through the $args array passed into the function, while you may also choose to use…
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A PHP error that causes WordPress execution to abort.
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off topic. Please contact the plugin author or make use of its support route. Gravity Forms is a complete contact form solution for WordPress
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"Template hierarchy" describes process by which WordPress determines which theme files to use when displaying a query. Index.php is the fallback for all queries, and, theoretically, the only theme fil…