char CData can't be directly assigned a number

Description

The following code:

<?php

$v = FFI::new("char[2]");
$v[0] = 65;
var_dump($v);

Resulted in this output:

Fatal error: Uncaught FFI\Exception: Incompatible types when assigning to type 'char' from PHP 'int' in Command line code:1
Stack trace:
#0 {main}
  thrown in Command line code on line 1

But I expected this output instead:

object(FFI\CData:char[2])#1 (2) {
  [0]=>
  string(1) "A"
  [1]=>
  string(1) ""
}

It's somewhat weird to have to type cast around, i.e. I could just do a FFI::cast to uint8_t * and it works. But for some reason, char is special. Seems like an arbitrary restriction to me, and it really should accept both.

PHP Version

master

Operating System

No response

Reproduisez l’exemple PHP FFI de l’issue et suivez le traitement des affectations à une valeur CData de type char. Localisez l’implémentation FFI concernée et les tests FFI existants, puis ajoutez une couverture pour l’affectation d’un entier à char et vérifiez que la valeur de caractère attendue est produite.