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Does installing Wordpress language programmatically?

I have a user website with Wordpress, and from their profile settings they can choose the language, this information and other settings are set for each user in user_meta.

I know how to translate, but is there a way to set the theme language programmatically?

Thank!

Edit: There are no plugins, please, I need to make this as simple as possible.

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5 answers

I found another solution:

// Set user selected language by loading the lang.mo file
if ( is_user_logged_in() ) {

    // add local filter
    add_filter('locale', 'language');

    function language($locale) {
        /* Note: user_meta and user_info are two functions made by me,
           user_info will grab the current user ID and use it for
           grabbing user_meta */

        // grab user_meta "lang" value
        $lang = user_meta(user_info('ID', false), 'lang', false); 

        // if user_meta lang is not empty
        if ( !empty($lang) ) {
           $locale = $lang; /* set locale to lang */
        }

        return $locale; 
    }

    // load textdomain and .mo file if "lang" is set
    load_theme_textdomain('theme-domain', TEMPLATEPATH . '/lang');

}

Via: http://codex.wordpress.org/Function_Reference/load_theme_textdomain

+3
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I think you are looking for a filter override_load_textdomainthat is called only at the beginning of load_textdomaina function call.

- :

function my_load_textdomain ($retval, $domain, $mofile) {

    if ($domain != 'theme_domain')
        return false;

    $user = get_currentuserinfo()
    $user_lang = get_user_lang($user);

    if ($new_mofile = get_my_mofile($user_lang)) {
        load_textdomain('theme_domain', $new_mofile);
        return true;
    }

    return false;
}
add_filter('override_load_textdomain', 'my_load_textdomain');

, . .

+2

, - :

    global $locale;

    $locale = 'en_CA';
    load_plugin_textdomain('invoice', false, 'my-plugin/languages/');
    generateInvoice(); // produce the English localized invoice

    $locale = 'fr_CA';
    load_plugin_textdomain('invoice', false, 'my-plugin/languages/');
    generateInvoice(); // produce the French localized invoice
+2

:

  • , : $userLocale = get_user_locale($userObject->ID);

  • theme_textdomain . , WP, locale:

    /**
 * Loads text domain by custom locale
 * Based on a WP function, only change is the custom $locale
 * parameter so we can get translated strings on demand during runtime
 */
function load_theme_textdomain_custom_locale($domain, $path = false, $locale)
{
    /**
     * Filter a theme locale.
     *
     * @since 3.0.0
     *
     * @param string $locale The theme current locale.
     * @param string $domain Text domain. Unique identifier for retrieving translated strings.
     */
    $locale = apply_filters('theme_locale', $locale, $domain);

    if (!$path) {
        $path = get_template_directory();
    }

    // Load the textdomain according to the theme
    $mofile = "{$path}/{$locale}.mo";
    if ($loaded = load_textdomain($domain, $mofile)) {
        return $loaded;
    }

    // Otherwise, load from the languages directory
    $mofile = WP_LANG_DIR . "/themes/{$domain}-{$locale}.mo";
    return load_textdomain($domain, $mofile);
}

: http://queryposts.com/function/load_theme_textdomain/

0

WP 4.7 :

switch_to_locale('en_US');

: https://developer.wordpress.org/reference/functions/switch_to_locale/

0

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