What p from `preg_match` stands for?

php

Solution

It does stand for "Perl REGular expression".

Problem

In ruby, there is a function called `gsub`, where g stands for `global` and sub stands for `substitution`. What `p` from `preg_match`? I suppose `reg` is for `regular` and `match` is really `match`. Is that correct?

Original source

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