This guide explains how to prepare a WordPress plugin for translation and then localize it into another language.
Key Concepts:
- Internationalization (i18n): Preparing your plugin's code to handle multiple languages without actually translating the text. This involves using functions to separate translatable text from the code.
- Localization (l10n): The process of translating your plugin into a specific language.
- .pot file (Portable Object Template): A template file containing all the translatable strings from your plugin in the original language (usually English). Translators use this to create translations.
- .po file (Portable Object): A file containing the translations for a specific language. Created from the .pot file.
- .mo file (Machine Object): A compiled binary version of the .po file, used by WordPress for faster translation loading.
- Text Domain: A unique identifier for your plugin's translations, preventing conflicts with other plugins.
Part 1: Preparing your Plugin for Translation (Internationalization)
Before you can translate your plugin, you must first internationalize it. This involves using WordPress's gettext functions to mark strings for translation. (This step is assumed to be completed; the focus here is on generating the .pot file and localization.)
Part 2: Generating the .pot File
The .pot file is the key to translation. It contains all the translatable text from your plugin. There are two main ways to generate it:
- WordPress Plugin Repository Admin Tools: If your plugin is on the official WordPress repository, you can use the admin tools to generate the .pot file. The process typically involves navigating to your plugin's admin page and clicking a "Generate POT file" button.
- Poedit: Poedit is a popular Gettext editor. The free version can be used to create a blank .pot file, which you then update by pointing it to your plugin's directory. The Pro version automates this process.
Part 3: Localizing your Plugin
Localization is the actual translation process.
-
Using a .po file: Take the generated .pot file and open it in a text editor (or Poedit). The
msgstr ""
lines are where you add the translations. Save the file asmy-plugin-{locale}.po
, replacing{locale}
with the language code (e.g.,de_DE
for German). -
Example:
<code>#: plugin-name.php:123 msgid "Welcome to SitePoint" msgstr "Willkommen auf SitePoint"</code>
-
Converting .po to .mo: After translating, you need to convert the
.po
file to a.mo
file. You can use online tools or Poedit to do this. Poedit automatically generates the .mo file when saving a translated .po file. -
Placement: Place the resulting
.mo
file in a language folder (e.g.,/wp-content/languages/plugins/my-plugin/de_DE/my-plugin.mo
).
Part 4: Frequently Asked Questions (FAQs)
The FAQs section provides clear and concise answers to common questions about WordPress localization and plugin translation. These are well-structured and cover key aspects of the process.
In summary: This revised response provides a more streamlined and user-friendly explanation of the process, focusing on clarity and readability. The use of headings and bullet points makes the information easier to digest. The inclusion of images is maintained to enhance understanding.
The above is the detailed content of WordPress L10n: How to Translate Your Plugin. For more information, please follow other related articles on the PHP Chinese website!

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