The ArrayIterator::rewind() function is an inbuilt function in PHP which is used to rewind the array back to the start.
Syntax:
void ArrayIterator::rewind( void )
Parameters: This function does not accept any parameters.
Return Value: This function does not return any value.
Below programs illustrate the ArrayIterator::rewind() function in PHP:
Program 1:
<?php // Declare an ArrayIterator $arrItr = new ArrayIterator(
array (
"a" => 4,
"b" => 2,
"g" => 8,
"d" => 6,
"e" => 1,
"f" => 9
)
); // Move to last position $arrItr ->seek(5);
// Display the next value var_dump( $arrItr ->next());
// Move to start position $arrItr -> rewind ();
// Display the current element echo $arrItr ->current();
?> |
Output:
NULL 4
Program 2:
<?php // Declare an ArrayIterator $arrItr = new ArrayIterator(
array (
"b" => "for" ,
"a" => "Geeks" ,
"e" => "Science" ,
"c" => "Geeks" ,
"f" => "Portal" ,
"d" => "Computer"
)
); // Check the validity of ArrayIterator while ( $arrItr ->valid()) {
$arrItr ->next();
} // Move to start position $arrItr -> rewind ();
// Display the current element echo $arrItr ->current();
?> |
Output:
for
Reference: https://www.php.net/manual/en/arrayiterator.rewind.php