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<?php class A implements IteratorAggregate{ private $callback; public function __construct(Closure $callback){ $this->callback = $callback; } public function aaa(){ $this->callback(); } } $a = new A(function () { echo 'a'; }); $a->aaa();
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Class A contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (IteratorAggregate::getIterator) in /in/O3I52 on line 3
Process exited with code 255.

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