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<?php class A { public $v; private static $_cli; private function __construct() { } public static function getCli() { if (!self::$_cli instanceof self) { self::$_cli = new self(); } return self::$_cli; } // override __clone() to private private function __clone() { } } $c1 = A::getCli(); $c1->v = 1; $c2 = $c1; $c2->v = 2; $c3 = clone $c1; $c3->v = 3; var_dump($c1->v, $c2->v, $c3->v);
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 private A::__clone() from global scope in /in/QEWFA:27 Stack trace: #0 {main} thrown in /in/QEWFA on line 27
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 private A::__clone() from global scope in /in/QEWFA:27 Stack trace: #0 {main} thrown in /in/QEWFA on line 27
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Call to private A::__clone() from context '' in /in/QEWFA:27 Stack trace: #0 {main} thrown in /in/QEWFA on line 27
Process exited with code 255.
Output for 5.6.0 - 5.6.40
Fatal error: Call to private A::__clone() from context '' in /in/QEWFA on line 27
Process exited with code 255.
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