<?php
class A{
public string $x;
}
$A = new A;
var_dump(property_exists($A,'x'));//true
var_dump($A); //class A#1 (1) {} // - it counts the property, but hides it
var_dump(new stdClass()); //class stdClass#1 (0) {} - empty object
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
bool(true)
object(A)#1 (0) {
["x"]=>
uninitialized(string)
}
object(stdClass)#2 (0) {
}
Parse error: syntax error, unexpected 'string' (T_STRING), expecting function (T_FUNCTION) or const (T_CONST) in /in/gvDf5 on line 4
Process exited with code 255.