<?php
$foo = new class {
public function __set(string $name, $value) { throw new \Exception; }
};
$foo->destructListener = new class {
public function __destruct() {echo "bye"; debug_print_backtrace(); }
};
unset($foo);
Fatal error: Uncaught Exception in /in/oa121:4
Stack trace:
#0 /in/oa121(7): class@anonymous->__set('destructListene...', Object(class@anonymous))
#1 {main}
thrown in /in/oa121 on line 4
bye#0 [internal function]: class@anonymous->__destruct()
Process exited with code 255.
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
Fatal error: Uncaught Exception in /in/oa121:4
Stack trace:
#0 /in/oa121(7): class@anonymous->__set('destructListene...', Object(class@anonymous))
#1 {main}
thrown in /in/oa121 on line 4
bye#0 [internal function]: class@anonymous->__destruct()
Process exited with code 255.
Output for 8.0.0 - 8.0.30
Fatal error: Uncaught Exception in /in/oa121:4
Stack trace:
#0 /in/oa121(7): class@anonymous->__set('destructListene...', Object(class@anonymous))
#1 {main}
thrown in /in/oa121 on line 4
bye#0 class@anonymous->__destruct()
Process exited with code 255.
Fatal error: Uncaught Exception in /in/oa121:4
Stack trace:
#0 /in/oa121(7): class@anonymous->__set('destructListene...', Object(class@anonymous))
#1 {main}
thrown in /in/oa121 on line 4
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Parse error: syntax error, unexpected 'class' (T_CLASS) in /in/oa121 on line 3
Process exited with code 255.