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<?php class friendList { private $friends; public function __construct(array $names=[]){ $this->friends = []; foreach($names as $name){$this->addFriend($name);} } public function addFriend($name) { $friends[] = $name; } public function getFriends() { return $friends; } } $friends = new friendList(['Eric','Dan','Lisa']); function funtimes($friends) { echo implode(", ", $friends->getFriends()); $this->addFriend('John'); } funtimes($data); var_dump($data);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $data in /in/YIYh4 on line 23 Fatal error: Uncaught Error: Call to a member function getFriends() on null in /in/YIYh4:19 Stack trace: #0 /in/YIYh4(23): funtimes(NULL) #1 {main} thrown in /in/YIYh4 on line 19
Process exited with code 255.

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