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<?php class A { public $val; public function __construct($val) { $this->val = $val; } } $storage = new SplObjectStorage; for($i = 1; $i <= 10; $i++) { $storage->attach(new A($i)); } $iterations = 0; $storage->rewind(); while ($storage->valid()) { $iterations++; $object = $storage->current(); echo 'Iteration #' . $iterations . ' with object A(' . $object->val . ')'; $storage->next(); if($iterations === 2 || $iterations === 8) { $storage->detach($object); echo ' - deleted Object A(' . $object->val . ') '; } echo PHP_EOL; } echo 'Number of iterations: ' . $iterations . PHP_EOL;
Output for git.master, git.master_jit, rfc.property-hooks
Iteration #1 with object A(1) Iteration #2 with object A(2) - deleted Object A(2) Iteration #3 with object A(1) Iteration #4 with object A(3) Iteration #5 with object A(4) Iteration #6 with object A(5) Iteration #7 with object A(6) Iteration #8 with object A(7) - deleted Object A(7) Iteration #9 with object A(1) Iteration #10 with object A(3) Iteration #11 with object A(4) Iteration #12 with object A(5) Iteration #13 with object A(6) Iteration #14 with object A(8) Iteration #15 with object A(9) Iteration #16 with object A(10) Number of iterations: 16

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