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<?php class Foo { public $secret = 'I actually prefer coding with Go'; public function getClosure() : closure { return function() { return $this->secret; }; } public function dontLeakMyStuff() { return create_function('', 'return $this->secret;'); } } $foo = new Foo(); $closure = $foo->getClosure(); var_dump($closure()); $function = $foo->dontLeakMyStuff(); var_dump($function());
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
string(32) "I actually prefer coding with Go" Fatal error: Uncaught Error: Call to undefined function create_function() in /in/sd9ee:14 Stack trace: #0 /in/sd9ee(22): Foo->dontLeakMyStuff() #1 {main} thrown in /in/sd9ee on line 14
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 string(32) "I actually prefer coding with Go" Fatal error: Uncaught Error: Call to undefined function create_function() in /in/sd9ee:14 Stack trace: #0 /in/sd9ee(22): Foo->dontLeakMyStuff() #1 {main} thrown in /in/sd9ee on line 14
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
string(32) "I actually prefer coding with Go" Deprecated: Function create_function() is deprecated in /in/sd9ee on line 14 Fatal error: Uncaught Error: Using $this when not in object context in /in/sd9ee(14) : runtime-created function:1 Stack trace: #0 /in/sd9ee(23): __lambda_func() #1 {main} thrown in /in/sd9ee(14) : runtime-created function on line 1
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.3.32 - 7.3.33
string(32) "I actually prefer coding with Go" Fatal error: Uncaught Error: Using $this when not in object context in /in/sd9ee(14) : runtime-created function:1 Stack trace: #0 /in/sd9ee(23): __lambda_func() #1 {main} thrown in /in/sd9ee(14) : runtime-created function on line 1
Process exited with code 255.
Output for 5.6.0 - 5.6.29
Parse error: syntax error, unexpected ':', expecting ';' or '{' in /in/sd9ee on line 5
Process exited with code 255.
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