While I am not a voting member of the community, I am unconvinced that there is a sufficient appetite from the PHP community for this new family of string functions.
I mean, when I discussed the possibility of array_transpose(), I could list nearly 100 Stack Overflow pages that called for such a function (without all the potential bugs involved with spreading techniques). https://meta.stackoverflow.com/q/417663/2943403 Do you see many calls for your proposed functions in the wild? Are there 5 questions on Stack Overflow where these functions provide a resounding benefit? I've hunted a little and haven't found any, but I might be searching poorly. Are there pre-existing implementations in repos that we can observe? In the absence of real demand, perhaps these should merely be in a userland library. I also agree that the $subject should be the first parameter, like substr_replace(). Mick
