Yes, PHPs beginnings were very messy and even today we see results from that.
But PHP was and remains hugely popular because it’s so easy and fast to work with and today it is very nicely designed and worked out. Yeah there are many details open but editors help you out with that. Other languages may be more consistent at the core but they have their own issues. JavaScript is a nightmare to work with for me, personally, but I o dont bitch about it every opportunity I get.
I guess I’m just slightly annoyed with people complaining about PHP while it’s just another language and it’s success speaks for itself