When should I use echo with single vs double quotes?

[system]

@Lemon_Juice

I don’t understand why some people find double quotes unreadable. To me using variables directly in strings is much more readable than using single quotes and concatenating. And I don’t think the speed differences are anything to worry about and if someone uses an opcode cache it becomes irrelevant.

For me it’s not that using double quotes makes the string unreadable. It’s just that I find using single quotes makes the code “more readable” - but that’s just me and hence my preference to always use single quotes. So whether you use single or double quotes boils down to nothing more than personal choice.

I agree with you that any increase in processing time when double quotes are used is totally trivial and insignificant unless you are doing echos in the 10’s of millions.

So bottom line: I don’t care which quotes people use, but I will always use single quotes unless double quotes are essential and, for me, arguments using performance as a justification for using single quotes is a total furphy and meaningless as described earlier.