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PHP prev

PHP original manual for prev [ show | php.net ]


(PHP 4, PHP 5, PHP 7)

prevRewind the internal array pointer


mixed prev ( array &$array )

Rewind the internal array pointer.

prev() behaves just like next(), except it rewinds the internal array pointer one place instead of advancing it.



The input array.

Return Values

Returns the array value in the previous 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.


Example #1 Example use of prev() and friends

= 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';


Note: The beginning of an array is indistinguishable from a boolean FALSE element. To make the distinction, check that the key() of the prev() element is not NULL.

See Also

  • current() - Return the current element in an array
  • end() - Set the internal pointer of an array to its last element
  • next() - Advance the internal pointer of an array
  • 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