> 2.78 million vs. 5.1 million* code references. > 1.54 million results. > 10 million results. Broad, active usage. > ...
I would not in any way base deprecation decisions on current usage statistics. If there are several ways to do something, and one is clearly better than the others (naming consistency) then the choice should IMHO be imposed to the community. Trying to make 10+ years old codebases work with recent versions of PHP without modification slows down development a lot. Major versions are here to break things. Changelogs and runtime deprecation notices are here to help.