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<?php class C{ protected $date; public function __construct(){ $this->date=new DateTime(); } public function getCurrent(){ return clone $date; } } class A extends C{ public function getDate(){ return $this->getCurrent()->add(new DateInterval('P10D')); } public function getDateAgain(){ return $this->getCurrent()->add(new DateInterval('P10D')); } } class B extends C{ public function getDate(){ return $this->getCurrent()->add(new DateInterval('P20D')); } } $a=new A(); $b=new B(); echo $a->getDate()->format('Y-m-d') . "\n"; echo $b->getDate()->format('Y-m-d') . "\n"; echo $a->getDateAgain()->format('Y-m-d') . "\n";
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
Warning: Undefined variable $date in /in/MYNp6 on line 11 Fatal error: Uncaught Error: __clone method called on non-object in /in/MYNp6:11 Stack trace: #0 /in/MYNp6(16): C->getCurrent() #1 /in/MYNp6(30): A->getDate() #2 {main} thrown in /in/MYNp6 on line 11
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 variable $date in /in/MYNp6 on line 11 Fatal error: Uncaught Error: __clone method called on non-object in /in/MYNp6:11 Stack trace: #0 /in/MYNp6(16): C->getCurrent() #1 /in/MYNp6(30): A->getDate() #2 {main} thrown in /in/MYNp6 on line 11
Process exited with code 255.
Output for 7.0.0 - 7.0.25, 7.1.0 - 7.1.20, 7.2.5 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: date in /in/MYNp6 on line 11 Fatal error: Uncaught Error: __clone method called on non-object in /in/MYNp6:11 Stack trace: #0 /in/MYNp6(16): C->getCurrent() #1 /in/MYNp6(30): A->getDate() #2 {main} thrown in /in/MYNp6 on line 11
Process exited with code 255.
Output for 7.3.32 - 7.3.33
Fatal error: Uncaught Error: __clone method called on non-object in /in/MYNp6:11 Stack trace: #0 /in/MYNp6(16): C->getCurrent() #1 /in/MYNp6(30): A->getDate() #2 {main} thrown in /in/MYNp6 on line 11
Process exited with code 255.
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