Drop support for php < 8.1

[greg0ire]

No description provided.

[greg0ire]

This is weird… isA() can be called with mixed, and then calls getType() which is typed as string. Which type declaration should get fixed? In the tests, there are calls to isA() with ints or floats:

lexer/tests/Doctrine/Common/Lexer/AbstractLexerTest.php

Lines 277 to 278 in 9b3ee62

	$this->assertTrue($this->concreteLexer->isA(11, 'int'));
	$this->assertTrue($this->concreteLexer->isA(1.1, 'int'));

Weirdly, static analysis does not have anything to say about this.
Note that this method is not used at all in the ORM or the ODM

[SenseException]

Do we even expect something different than a string here? My preference would be to change the declaration of isA().

[stof]

static analysis has nothing to say because phpstan runs at level 7, not at max level (i.e. 9). Until level 8, mixed behaves like Typescript's any: everything is valid with it. It is only at level 9 that it is treated like Typescript's unknown

[greg0ire]

I'm waiting on the outcome of the discussion on #79 to decide what to do with this. If we still support PHP 7.1 on 2.0, it might be acceptable to bump to 2.0 on doctrine/orm "quickly" (in 2.15)

[greg0ire]

Blocked by #96