Doctrine_Cache_Driver : array_search() expects parameter 2 to be array, boolean given at line 283

I don't quite understand. Can you explain more?

Reading your description it doesn't make any sense. Re-open if you have a better more clear description of the problem.

It's not very complicated :

In Doctrine_Cache_Driver::_deleteKey, you do array_search() with the array $keys as haystack:

$keys = $this->fetch($this->_cacheKeyIndexKey);
$key = array_search($key, $keys);

But $keys is a string, because Doctrine_Cache_Driver::fetch returns a string (or false) :

/**

• Fetch a cache record from this cache driver instance
  *
• @param string $id cache id
• @param boolean $testCacheValidity if set to false, the cache validity won't be tested
• @return string cached datas (or false)
  */
  public function fetch($id, $testCacheValidity = true)

You can't make an array_search on a string.

I can't be more clear

edit : You may tell me that the PHPdoc is wrong : but the problem still appears when ::fetch returns false.

The api documentation is wrong, fetch always returns the data structure that was originally stored. So in this case it is an array.

Ok i've anticipated this answer

So Cf. edit of my last comment.

I updated the API doc blocks.

Sorry, I reopen this issue again because I still encounter it.

I've watched it deeper to make it reproductible :

I'm using Doctrine_Cache_Array.
The problem simply appears when you try to delete a cache entry that does not exist.

example :

$cache = new Doctrine_Cache_Array();
$cache->delete(45);

Patch to Doctrine_Cache_Array::_doDelete() so that it returns false if the entry does not exist.