3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { private $a = 0; } $a = new A(); $b = (object)[chr(0) . 'A' . chr(0) . 'a' => 1]; $c = json_decode('{ "' . chr(0) . 'A' . chr(0) . 'a' . '":"2" }'); echo $c->{chr(0) . 'A' . chr(0) . 'a'}; echo $b->{chr(0) . 'A' . chr(0) . 'a'}; echo $a->{chr(0) . 'A' . chr(0) . 'a'};
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Warning: Attempt to read property "" on null in /in/pUC7p on line 11 Fatal error: Uncaught Error: Cannot access property starting with "\0" in /in/pUC7p:12 Stack trace: #0 {main} thrown in /in/pUC7p on line 12
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: Trying to get property '' of non-object in /in/pUC7p on line 11 Fatal error: Uncaught Error: Cannot access property started with '\0' in /in/pUC7p:12 Stack trace: #0 {main} thrown in /in/pUC7p on line 12
Process exited with code 255.
Output for 7.3.32 - 7.3.33, 7.4.26
Fatal error: Uncaught Error: Cannot access property started with '\0' in /in/pUC7p:12 Stack trace: #0 {main} thrown in /in/pUC7p on line 12
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
Notice: Trying to get property of non-object in /in/pUC7p on line 11 Fatal error: Uncaught Error: Cannot access property started with '\0' in /in/pUC7p:12 Stack trace: #0 {main} thrown in /in/pUC7p on line 12
Process exited with code 255.
Output for 5.6.0 - 5.6.40
Notice: Trying to get property of non-object in /in/pUC7p on line 11 Fatal error: Cannot access property started with '\0' in /in/pUC7p on line 12
Process exited with code 255.
preferences:
177.57 ms | 401 KiB | 292 Q