All about Programming and Computer Science
WooCommerce Payments, like any other payment service, uses webhook to notify relevant data to merchant sites. However, sometimes merchant sites can not receive these webhook events due to multiple issues. This can be a big issue if these events are related to disputes or payment status. One example is that merchants are not notified when disputes happen.
Continue reading “Payment: Webhook Reliability”Definitely not something new but this experience gave me good reason to understand how a function works under the hood.
in_array() goes through all items in a provided array and see if any existing item exists in the array. It’s not an issue if the array has only a few items. However, when it has thousands or even million items, this function is no longer usable!
Instead, a good idea is to flip values to become keys and vice versa. It’s pretty simple if all values are unique then we can just use array_flip() for this purpose and search with new keys (or old values). Good trick indeed! The reason under the hood is that array keys are implemented with Hashtable.
Otherwise, it may be a bit more complicated and we may need to do some other tricks but it can still work!
This conversation suggests using isset(). However, basically it’s still my idea above with a different way telling about that. Even though, it is still a good read!
I’ve recently worked in a code test project in my company A8C and it has a task to improve the performance of an existing code. The excellent part is that the test gives a suggestion to use cachegrind. I was really impressive how this tool can help profiling the code, visualize profiling results, and find out exactly places where performance issues happen.
Today Dat Learned 