PHP SplObjectStorage rewind() Function

<?php

// Create an empty SplObjectStorage
$str = new SplObjectStorage();

$obj = new StdClass;
$obj2 = new StdClass;
$obj3 = new StdClass;

$str->attach($obj, "GFG");
$str->attach($obj2, "Geeks");
$str->attach($obj3, "FORK JAVA");

// Using rewind function
$str->rewind();

// Get current data 
var_dump($str->getInfo());

// Move on to next object
$str->next();

// Get current data 
var_dump($str->getInfo());

// Again using rewind function
$str->rewind();

// Get current data 
var_dump($str->getInfo());
?>

<?php

$obj1 = new StdClass;
$obj2 = new StdClass;
$obj3 = new StdClass;

$gfg = new SplObjectStorage();
$gfg[$obj1] = "GFG";
$gfg[$obj2] = "GeeksClasses";
$gfg[$obj3] = "SUDO";

// Using rewind function
$gfg->rewind();

while($gfg->valid()) {
    var_dump($gfg->getInfo());
    
    // Moving to next element
    $gfg->next();
}
?>