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<?php class CallableStringifier { private static $callables = array(); public static function stringify($callable) { $id = count(self::$callables); self::$callables[$id] = $callable; return 'return ' . __CLASS__ . "::call($id, func_get_args());"; } public static function call($id, $args) { return call_user_func_array(self::$callables[$id], $args); } } $func = create_function('$arg1', CallableStringifier::stringify(function($arg1) { return $arg1; })); echo $func(function(){return 3;}); // outputs 1
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: Call to undefined function create_function() in /in/qlA6f:20 Stack trace: #0 {main} thrown in /in/qlA6f on line 20
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: Call to undefined function create_function() in /in/qlA6f:20 Stack trace: #0 {main} thrown in /in/qlA6f on line 20
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Deprecated: Function create_function() is deprecated in /in/qlA6f on line 22 Fatal error: Uncaught Error: Object of class Closure could not be converted to string in /in/qlA6f:24 Stack trace: #0 {main} thrown in /in/qlA6f on line 24
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.3.32 - 7.3.33
Recoverable fatal error: Object of class Closure could not be converted to string in /in/qlA6f on line 24
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.31
Deprecated: Function create_function() is deprecated in /in/qlA6f on line 22 Recoverable fatal error: Object of class Closure could not be converted to string in /in/qlA6f on line 24
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33
Catchable fatal error: Object of class Closure could not be converted to string in /in/qlA6f on line 24
Process exited with code 255.
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