PHP SplObjectStorage next() Function

Last Updated : 11 May, 2023

The SplObjectStorage::next() function is an inbuilt function in PHP which is used to move to next entry of storage.

Syntax:

void SplObjectStorage::next()

Parameters: This function does not accept any parameter. Return Value: This function does not return any value. Below programs illustrate the SplObjectStorage::next() function in PHP:

Program 1:

php

<?php  // Create an empty SplObjectStorage $str = new SplObjectStorage();  $obj = new StdClass; $obj2 = new StdClass;  // Use attach() function to add object $str->attach($obj, "GFG"); $str->attach($obj2, "Geeks");  $str->rewind();  // Get the current data  var_dump($str->getInfo());  // Move on to next object $str->next();  // Print result of next entry var_dump($str->getInfo()); ?>

Output:

string(3) "GFG" string(5) "Geeks"

Program 2:

php

<?php  // Create an Empty SplObjectStorage $str = new SplObjectStorage();   $obj1 = new StdClass; $obj2 = new StdClass; $obj3 = new StdClass; $obj4 = new StdClass;   // Use attach() function to add object $str->attach($obj1, "GeeksforGeeks"); $str->attach($obj2, "GFG"); $str->attach($obj3); $str->attach($obj4, "DSA");   $str->rewind();   // Iterate and print data on each index while($str->valid()) {          // Get index      $index  = $str->key();     $object = $str->current();      $data   = $str->getInfo();       var_dump($index, $data);          // Moving each time next entry     $str->next(); } ?>

Output:

int(0) string(12) "GeksforGeeks" int(1) string(3) "GFG" int(2) NULL int(3) string(3) "DSA"

Reference: https://www.php.net/manual/en/splobjectstorage.next.php

PHP SplObjectStorage key() Function

R_Raj

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