<?php/** * Example : rewind(); */$arr = new SplFixedArray(5);$arr[1] = 2;$arr[4] = "foo";$a = $arr->key();var_dump($a);echo "<br>";$arr->next();$a = $arr->key();var_dump($a);echo "<br>";$arr->next();$a = $arr->key();var_dump($a);echo "<br>";$arr->rewind();$a = $arr->key();var_dump($a);echo "<br>";?>The above example will output:int(0) int(1) int(2) int(0)