next
(PHP 4, PHP 5)
next — Advance the internal array pointer of an array
Description
next() behaves like current(), with one difference. It advances the internal array pointer one place forward before returning the element value. That means it returns the next array value and advances the internal array pointer by one.
Return Values
Returns the array value in the next place that's pointed to by the
internal array pointer, or FALSE if there are no more elements.
This function may
return Boolean FALSE, but may also return a non-Boolean value which
evaluates to FALSE. Please read the section on Booleans for more
information. Use the ===
operator for testing the return value of this
function.
Examples
Example #1 Example use of next() and friends
<?php
$transport = array('foot', 'bike', 'car', 'plane');
$mode = current($transport); // $mode = 'foot';
$mode = next($transport); // $mode = 'bike';
$mode = next($transport); // $mode = 'car';
$mode = prev($transport); // $mode = 'bike';
$mode = end($transport); // $mode = 'plane';
?>
Notes
Note: You won't be able to distinguish the end of an array from a boolean
FALSEelement. To properly traverse an array which may containFALSEelements, see the each() function.
See Also
- current() - Return the current element in an array
- end() - Set the internal pointer of an array to its last element
- prev() - Rewind the internal array pointer
- reset() - Set the internal pointer of an array to its first element
- each() - Return the current key and value pair from an array and advance the array cursor
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