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<?php class A { private $fruit = 'pear'; } function getfunc() { $b = function() { $a = function() { return 'apple'; }; echo $a(); }; $o = $b->bindTo(new A()); echo $o->fruit; } call_user_func(getfunc());
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Warning: Undefined property: Closure::$fruit in /in/YQPY8 on line 13 Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, no array or string given in /in/YQPY8:16 Stack trace: #0 {main} thrown in /in/YQPY8 on line 16
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Warning: Undefined property: Closure::$fruit in /in/YQPY8 on line 13 Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, no array or string given in /in/YQPY8:16 Stack trace: #0 {main} thrown in /in/YQPY8 on line 16
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, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
Fatal error: Uncaught Error: Closure object cannot have properties in /in/YQPY8:13 Stack trace: #0 /in/YQPY8(16): getfunc() #1 {main} thrown in /in/YQPY8 on line 13
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Catchable fatal error: Closure object cannot have properties in /in/YQPY8 on line 13
Process exited with code 255.

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