Is it possible to add PHP 7.1 to TIO.run? My reasoning is that using undeclared constant is deprecated in PHP 7.2 (and I think it will be removed in PHP 8).

And this feature is really useful for code golfing.

@Dennis may you pull Ahead?

also I finally wrote a reference sheet github.com/ajc2/ahead/wiki/Function-Reference

{}u are not implemented yet, might do that tomorrow

@KonradBorowski Is having both 7.1 and 7.2 worth it?. While 7.1 doesn't show a warning, it still shows a notice... I'd rather add the latest version that still supports barewords once the current version does not.

@snail_ Done.

From what I recall, PHP 7 had a ton of breaking changes from PHP 6

TIO never had PHP 5/6, so that wasn't an issue.

@Dennis github.com/TryItOnline/tiosetup/blob/master/stage/… doesn't have pexpect.

I don't think SELinux allows opening virtual TTYs

@quartata pexpect supports the use of Popen instead of ptys.

pexpect is installed (and works) on TIO, but isn't in the setup scripts.