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