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<?php class Father { private $son; private $foo = ''; function getFoo() { return $this->foo; } } class Son { private $father; public function __construct(Father $dad) { $this->father = $dad; } function setFoo($value) { $this->dad->setFoo($value); } } $father = new Father(); $son = new Son($father); $son->setFoo('bar'); echo $father->getFoo(); //I want it to now be 'bar'
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Warning: Undefined property: Son::$dad in /in/e4DcD on line 26 Fatal error: Uncaught Error: Call to a member function setFoo() on null in /in/e4DcD:26 Stack trace: #0 /in/e4DcD(33): Son->setFoo('bar') #1 {main} thrown in /in/e4DcD on line 26
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: Son::$dad in /in/e4DcD on line 26 Fatal error: Uncaught Error: Call to a member function setFoo() on null in /in/e4DcD:26 Stack trace: #0 /in/e4DcD(33): Son->setFoo('bar') #1 {main} thrown in /in/e4DcD on line 26
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined property: Son::$dad in /in/e4DcD on line 26 Fatal error: Uncaught Error: Call to a member function setFoo() on null in /in/e4DcD:26 Stack trace: #0 /in/e4DcD(33): Son->setFoo('bar') #1 {main} thrown in /in/e4DcD on line 26
Process exited with code 255.
Output for 7.3.32 - 7.3.33
Fatal error: Uncaught Error: Call to a member function setFoo() on null in /in/e4DcD:26 Stack trace: #0 /in/e4DcD(33): Son->setFoo('bar') #1 {main} thrown in /in/e4DcD on line 26
Process exited with code 255.
Output for 5.6.0 - 5.6.40
Notice: Undefined property: Son::$dad in /in/e4DcD on line 26 Fatal error: Call to a member function setFoo() on null in /in/e4DcD on line 26
Process exited with code 255.

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