PHP AppendIterator next () function

Syntax:
void AppendIterator::next (void)
Parameters:This function takes no parameters.Return value:This function does not return any value.The following programs illustrate the AppendIterator function::next() in PHP:Program 1:
// Declare ArrayIterator $arr1 = new ArrayIterator ( array ( ’G’ , ’e’ , ’ e’ , ’k’ , ’ s’ ));
// Create a new AppendIterator $itr = new AppendIterator;
// Add an ArrayIterator element $itr -> append ( $arr1 );
// Show the current iterator element var_dump ( $itr -> current());
// Use AppendIterator::next() function for
// go to next element $itr -> next();
// Show the current iterator element var_dump ( $itr -> current());
?>
Exit:
string (1 ) "G" string (1) "e"
Program 2:
// Declare ArrayIterator $arr1 = new ArrayIterator ( array ( "a" = > "Geeks" , "b" = > "for" , "c" = > "Geeks" )); $arr2 = new ArrayIterator ( array ( "x" = > "Computer" , "y" = > " Science " , " z " = > " Portal " ) );
// Create a new AppendIterator $itr = new AppendIterator; $itr -> append ( $arr1 ); $itr -> append ( $arr2 ); $itr -> rewind (); while ( $itr -> valid()) { echo "ArrayIterator Key:" . $itr -> key(). " ArrayIterator Value:" . $itr -> current(). "" ; $itr -> next(); }
?>
Exit:
ArrayIterator Key: a ArrayIterator Value: Geeks ArrayIterator Key: b ArrayIterator Value: for ArrayIterator Key: c ArrayIterator Value: Geeks ArrayIterator Key: x ArrayIterator Value: Computer ArrayIterator Key: y ArrayIterator Value: Science ArrayIterator Key: z ArrayIterator Value: Portal  Link: https://www.php.net/manual/en/appenditerator .next.php 



                   

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