PHP Functions Essential Reference

prev

mixed prev(array array) 

Moves the internal array pointer to the previous element and returns that element’s value.

Returns:

Contents of the previous element in the array; FALSE when there are no more elements

Description:

This function moves the internal array pointer to the previous element of array and returns that element’s value. This can be useful with current() and next() to traverse an array; however, this is dangerous. The reason is that prev() returns the value of the element found; if this evaluates to FALSE, there is no way to tell whether you’ve actually hit the beginning of the array being traversed, or the previous element simply has a value of FALSE.

Version:

PHP 3, PHP 4

See also:

 end() key() current() next() reset() ...