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<?php class Errors extends ArrayObject {} class Foo { private Errors $errors; public function __construct() { $this->errors = new Errors; } public function generateErrors(): void { $this->errors->append('Test error'); } public function printErrors(): void { foreach($this->errors as $error) { echo $error . PHP_EOL; } } } $foo = new Foo; $foo->generateErrors(); $foo->printErrors();
Output for git.master_jit, git.master, rfc.property-hooks
Test error

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