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I need to work over the hook_menu_alter function and I found that the dpm() function is not working for arrays. I have devel and admin_devel enabled. I flushed all cache to make sure the hook is fired.

function MY_MODULE_menu_alter(&$items) {
  dpm('hello'); // This is printed 
  dpm($items); //This one is not printed at all
}
  • Try the drupal_debug function which writes to a txt file in your tmp directory. api.drupal.org/api/devel/devel.module/function/drupal_debug/7 – 2pha Feb 6 '13 at 9:22
  • FYI the exact same code works for me so the problem is with your site in particular...have you tried turning off other modules to see if you can isolate the cause of the problem? – Clive Feb 6 '13 at 9:40
  • I have a setup where I get Array(), slightly better than nothing but not by much. – kqw Aug 29 '14 at 9:50
0

hook_menu_alter() is fired directly in the same call that flushes the caches - and only once. If you do that via drush cc all the result is never displayed.

| improve this answer | |
  • 2
    This doesn't explain why "hello" is printed, but not the array. – kiamlaluno Feb 6 '13 at 10:33
  • In fact dpm($items) works if I run cron. – chefnelone Feb 6 '13 at 10:59
  • IMHO cron also empties caches. - where/when does it print "hello"? – zwirbeltier Feb 6 '13 at 12:30

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