Category "hashtable"

How to get the key by index in Hashtable?

I try to get the value of the key in a Hashtable based on the index position I provide, this is my hashtable: Hashtable<Integer, String> hash_table = new

Why the macro "ZVAL_COPY_VALUE(z,v)" seems to work unexpectedly in PHP Internal?

My question is about HashTable: The PHP VERSION debugged is PHP-7.0.12, I couldn't find out where the zval's str member is updated within the macro "ZVAL_COPY_V

Can hash tables really be O(1)?

It seems to be common knowledge that hash tables can achieve O(1), but that has never made sense to me. Can someone please explain it? Here are two situations

Can hash tables really be O(1)?

It seems to be common knowledge that hash tables can achieve O(1), but that has never made sense to me. Can someone please explain it? Here are two situations