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I have this code here:

$pageLanguage = strtolower($pageMetadata["language"]); 

$languageArray = array ("afrikaans" => "af", "dutch" => "nl", "french" => "fr", "german" => "de", "spanish" => "es"); 

$updatedLanguage = $languageArray[$pageLanguage];

add_filter('locale', 'change_my_locale');
function change_my_locale( $locale ) {
  $locale = $updatedLanguage;
  return $locale;
}

I would like to know how to pass the variable $updatedLanguage into the change_my_locale() function please?

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  • Can you elaborate on what you’re trying to do? In your example you would just define the variable inside the function.
    – Jacob Peattie
    Commented Sep 4, 2021 at 2:45
  • Yes sorry I understand that I could move that variable as it is written into the function. I am getting the value of $updatedLanguage from other code that can't go into the function, I have updated the question with the extra code. Basically, I getting the language of the page from the $pageMetadata array, and then want to update it using the filter. Is this the correct way to approach this?
    – Platoscave
    Commented Sep 4, 2021 at 2:59

1 Answer 1

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You could use an anonymous function and pass the variable to it with use.

$updatedLanguage = $languageArray[$pageLanguage] ?? '';
if ( $updatedLanguage ) {
    add_filter('locale', function($locale) use ($updatedLanguage) {
        return $updatedLanguage;
    });
}

If you're changing the locale at runtime, then you may want to look here Change locale manually at runtime?, where it is noted that the change could have a performance impact. Also, you may need to do the change early enough in the WP loading sequence so that the correct translation file gets loaded - if it something that you need.

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