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<?php class Foo { private $shit; public function bar() { $name = 'this'; var_dump($$name); $$name = 'herpderp'; var_dump($$name); var_dump($this->shit); } } $d = new Foo; $d->bar();
Output for 7.1.0
object(Foo)#1 (1) { ["shit":"Foo":private]=> NULL } Fatal error: Uncaught Error: Cannot re-assign $this in /in/544Pu:8 Stack trace: #0 /in/544Pu(15): Foo->bar() #1 {main} thrown in /in/544Pu on line 8
Process exited with code 255.
Output for 5.3.6 - 5.6.28, 7.0.0 - 7.0.14
object(Foo)#1 (1) { ["shit":"Foo":private]=> NULL } string(8) "herpderp" NULL
Output for 5.0.4 - 5.3.5, hhvm-3.10.0 - 3.12.0
Notice: Undefined variable: this in /in/544Pu on line 7 NULL string(8) "herpderp" NULL
Output for 5.0.0 - 5.0.3
Notice: Undefined variable: this in /in/544Pu on line 7 NULL string(8) "herpderp" NULL
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/544Pu on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/544Pu on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/544Pu on line 4
Process exited with code 255.