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<?php $clazz = new class { public $foo = null; }; $clazzy = new $clazz(); $clazzy->fooo = "bar"; var_dump($clazz, $clazzy);
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Deprecated: Creation of dynamic property class@anonymous::$fooo is deprecated in /in/opivb on line 8 object(class@anonymous)#1 (1) { ["foo"]=> NULL } object(class@anonymous)#2 (2) { ["foo"]=> NULL ["fooo"]=> string(3) "bar" }
Output for 8.3.5
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 Deprecated: Creation of dynamic property class@anonymous::$fooo is deprecated in /in/opivb on line 8 object(class@anonymous)#1 (1) { ["foo"]=> NULL } object(class@anonymous)#2 (2) { ["foo"]=> NULL ["fooo"]=> string(3) "bar" }
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
object(class@anonymous)#1 (1) { ["foo"]=> NULL } object(class@anonymous)#2 (2) { ["foo"]=> NULL ["fooo"]=> string(3) "bar" }

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