I think now a days, we don't have to worry about memory. I would prefer to be able to read, debug and understand the code instead of having to worry about memory.
But for sure, I am talking about PHP. It might makes sense to worry about the usage of memory in different languages.
No offense, it's just I have a personal rule not to create an unwanted variable until that particular value is used more than ones.
You're right, not every function call must be wrapped in a variable. It always depends, right? 🙃
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