hook_menu() with enabled languages

Question

I'm trying to implement hook_menu() in my module. The problem is, it doesn't add the menu item for English while it does for Turkish. I'm guessing it has something to do with title arguments, but I can't be sure. Below is my code:

function suweb_agi_menu() {
  global $language;
  $lang = $language->language;
  $items = [];
  $items['agi'] = [
    'title' => ($lang == 'tr')?'AGİ (Aile Geçim İndirimi)':'AGİ (Family Status Declaration)',
    'page callback' => 'drupal_get_form',
    'page arguments' => ['suweb_agi_form'],
    'access arguments' => ['access content'],
    'menu_name' => 'menu-sol-menu'
  ];
  return $items;
}

What am I doing wrong?

Answer 1

The code you are using doesn't work simply because hook_menu() is not called all the times. Drupal caches the result of the implementations of hook_menu() and call them when the cache is invalidated, for example, when after a module has been enabled/installed, or disabled/uninstalled. Changing language doesn't invalidate the cache Drupal uses for hook_menu(), so your code would keep using the title in the same language until a module is non installed, for example.

The code you are using is also useless. Just use the following one, and the title would be shown in the same language used for the page, if there is a translation for that language.

function suweb_agi_menu() {
  global $language;
  $lang = $language->language;
  $items = [];
  $items['agi'] = [
    'title' => 'AGİ (Family Status Declaration)',
    'page callback' => 'drupal_get_form',
    'page arguments' => ['suweb_agi_form'],
    'access arguments' => ['access content'],
    'menu_name' => 'menu-sol-menu'
  ];
  return $items;
}

You can always provide a translation for your menu title on admin/config/regional/translate/translate. (It requires the Locale module.)

Answer 2

The following code does what you seem to need (screenshots attached). The following modules need to be activated:

• i18n_menu (part of the i18n)

Further configuration:

• I added a new language (tr) and set language detection to "Determine the language from the URL (Path prefix or domain)."
• I added a new menu with machine name (menu-sol-menu) and set the translation mode to "Translate and Localize". Also added the new menu as a block to the header region of the theme.

• Added the following code in a custom module and activated it.

  function agi_menu() {
    $items = [];
    $items['agi'] = [
      'title' => 'AGI (Family Status Declaration)',
      'page callback' => 'drupal_get_form',
      'page arguments' => ['node_form'],
      'access arguments' => ['access content'],
      'menu_name' => 'menu-sol-menu'
    ];
    return $items;
  }
  

I visited the menu admin page and saw that a new menu item was added:

I checked the language option for that new menu item, it was set to neutral.

I visited the home page of my drupal instance and checked that the menu item appears, for both english (default language) and turkish, using the URL to define the current language.

Finally, I looked in the translate interface for the title of the menu item.

Conclusion: The provided code with the described configuration works as expected by the OP.

Good luck!

N.B.: Especially for the 'title' and 'title callback' properties, the documentation is very clear about how to use them in a multilingual setting

"title": Required. The untranslated title of the menu item. "title callback": Function to generate the title; defaults to t(). If you require only the raw string to be output, set this to FALSE.