php/php-src — pull request #151 by Zimilo (2012-08-06 10:12:17+00:00)
Title: The origin intention is to set all the elements to NULL?

In the zend_alloc.c, function zend_mm_init,

This line:

```c
memset(heap->cache, 0, sizeof(heap->cache));

```

Maybe the origin intention is to set all the elements to NULL?
```c
memset(heap->cache, 0, sizeof(heap->cache) * ZEND_MM_NUM_BUCKETS
```

Although some situations, it will not cause the bug, but I thought it needs to change.