Is it common for professors in France/Europe to accept students for PhD positions but ask them to arrange their own funding? I completed master's of mathematics in Asia in June 2020. I had written to some professors for PhD positions in number theory in December 2019 . One of the professors in France said yes to me but he said that I should look for other sources of funding as his university didn't have PhD funding at that time. So, I began to look for some funding options but I missed applying for a funding opportunity that is open to anyone whose university would be in that region of France. (I came across on it on web at a date after last date).
Then there was a scholarship application from my country and I began applying for it in mid-March of 2020 but for that a confirmation letter from my prospective guide was required that I was selected for the PhD program. When asked for the letter, the professor didn't reply to my emails, but I can understand that happening due to COVID.
So, then I thought that I would apply to Europe again in December and began studying more topics to improve my knowledge and didn't contacted that professor.
My questions:

Is it common in French universities that a professor says yes for PhD but tells the student to look for funding opportunities by himself?

Is it common in European universities that a professor says yes for PhD but tells the student to look for funding opportunities by himself?


Please guide!
Its certainly normal in the UK. Very few universities fund any PhD students themselves (where would they get the money from?). Most students are funded on government scholarships. How these are awarded varies from field to field and I don't know what the norm is in mathematics. In biology they are awarded to centers called Centers for Doctoral Training (CDT/DTPs), which often cover several universities. Each year professors  compete for the right to recruit a student, which they will then advertise for.
Until now, these scholarships have only been open to &quot;home&quot; students (that is British or EU students). Any overseas students have to obtain a scholarship from their own government, or an NGO or charity of some sort, or pay themselves out of pocket. Most profs will take most students who can bring funding/pay their way.
This year things are changing. CDTs/DTPs will now bed allowed to offer up to a third of their scholarships to overseas students. BUT, they will only pay &quot;home&quot; fees, which are generally less than overseas fees. How this difference is handled is varying from Uni to Uni. Some will say that they will charge full overseas fees to overseas students recruited to these scholarships, and the student would have to find the difference (on the order of £10k a year). Other universities are offering to waive the extra overseas fee.