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array_flip():Can only flip STRING and INTEGER values! in DrupalDefaultEntityController->load()

Asked 2011-01-25T19:40:27.997
44

I have recently migrated my module to Drupal7 (on PHP Version 5.3.1) and now I am getting following errors:

    * Warning: array_flip() [function.array-flip]: Can only flip STRING and INTEGER values! in DrupalDefaultEntityController->load() (line 178 of C:\Users\akulkarni\Desktop\xampp\htdocs\servicecasting\includes\entity.inc).
    * Warning: array_flip() [function.array-flip]: Can only flip STRING and INTEGER values! in DrupalDefaultEntityController->load() (line 178 of C:\Users\akulkarni\Desktop\xampp\htdocs\servicecasting\includes\entity.inc).
    * Warning: array_flip() [function.array-flip]: Can only flip STRING and INTEGER values! in DrupalDefaultEntityController->load() (line 178 of C:\Users\akulkarni\Desktop\xampp\htdocs\servicecasting\includes\entity.inc).
    * Warning: array_flip() [function.array-flip]: Can only flip STRING and INTEGER values! in DrupalDefaultEntityController->cacheGet() (line 354 of C:\Users\akulkarni\Desktop\xampp\htdocs\servicecasting\includes\entity.inc).
    * Warning: array_flip() [function.array-flip]: Can only flip STRING and INTEGER values! in DrupalDefaultEntityController->load() (line 178 of C:\Users\akulkarni\Desktop\xampp\htdocs\servicecasting\includes\entity.inc).
    * Warning: array_flip() [function.array-flip]: Can only flip STRING and INTEGER values! in DrupalDefaultEntityController->cacheGet() (line 354 of C:\Users\akulkarni\Desktop\xampp\htdocs\servicecasting\includes\entity.inc).
    * Warning: array_flip() [function.array-flip]: Can only flip STRING and INTEGER values! in DrupalDefaultEntityController->load() (line 178 of C:\Users\akulkarni\Desktop\xampp\htdocs\servicecasting\includes\entity.inc).
    * Warning: array_flip() [function.array-flip]: Can only flip STRING and INTEGER values! in DrupalDefaultEntityController->cacheGet() (line 354 of C:\Users\akulkarni\Desktop\xampp\htdocs\servicecasting\includes\entity.inc).

I have also tried upgrading other m

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2 Answers

86

The most common cause of this error is using a something_load() function with an array as argument. This is not supported anymore because the load_multiple() functions need to be used for this now.

Example in D6:

<?php
// Using array with the id was already discouraged in D6 but still worked.
$user = user_load(array('uid' => 1));
$user = user_load(array('name' => 'admin'));
?>

Drupal 7:

<?php
// Argument to a load() function *must* be a single id
$user = user_load(1);

// Querying for another attribute is a bit more complex.
// Note that using reset(user_load_multiple() directly is not E_STRICT compatible.
$users = user_load_multiple(array(), array('name' => 'admin'));
$user = reset($users);
?>

So, the easiest way to catch these is to search for "_load(array".

answered 2011-01-26T10:46:29.483
1

Saw a similar issue in our usage of the latest page_title module. For now, we just disabled the module and it cleaned up the error.

See: http://www.newblood.com/blog/2011/04/26/drupal-7-error-in-page-title-module/

answered 2011-04-26T18:01:20.807

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