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.

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.