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<?php class A { private $foo = 'bar'; } class B extends A { public function setFoo() { return $this->{chr(0) . 'A' . chr(0) . 'foo'} = 'stuff'; } } $b = new B(); $b->setFoo(); var_dump($b);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: Uncaught Error: Cannot access property starting with "\0" in /in/jrWc2:12 Stack trace: #0 /in/jrWc2(17): B->setFoo() #1 {main} thrown in /in/jrWc2 on line 12
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 Error: Cannot access property starting with "\0" in /in/jrWc2:12 Stack trace: #0 /in/jrWc2(17): B->setFoo() #1 {main} thrown in /in/jrWc2 on line 12
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Cannot access property started with '\0' in /in/jrWc2:12 Stack trace: #0 /in/jrWc2(17): B->setFoo() #1 {main} thrown in /in/jrWc2 on line 12
Process exited with code 255.
Output for 5.2.3 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.35, 5.6.0 - 5.6.28
Fatal error: Cannot access property started with '\0' in /in/jrWc2 on line 12
Process exited with code 255.
Output for 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.2
<br /> <b>Fatal error</b>: Cannot access property started with '\0' in <b>/in/jrWc2</b> on line <b>12</b><br />
Process exited with code 255.
Output for 5.0.0 - 5.0.4
object(B)#1 (1) { ["foo:private"]=> string(5) "stuff" }
Output for 4.4.2 - 4.4.9
<br /> <b>Parse error</b>: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/jrWc2</b> on line <b>4</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
<br /> <b>Parse error</b>: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/jrWc2</b> on line <b>4</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in <b>/in/jrWc2</b> on line <b>4</b><br />
Process exited with code 255.

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