PHP: prev() function
PHP: Rewind the internal array pointer
The prev() function is used to fetch the array value in the previous place, pointed by the internal array pointer.
prev() function behaves just like next(), except it rewinds the internal array pointer one place instead of advancing it.
Version:
(PHP 4 and above)
Syntax:
prev(array_name)
Parameters:
| Name | Description | Required / Optional |
Type |
|---|---|---|---|
| array_name | The input array. | Required | Array |
Return value:
The array value of the previous place in the array pointed by internal array pointer, or FALSE if there are no more elements.
Value Type: Mixed
*Mixed: Mixed indicates multiple (but not necessarily all) types.
Example:
<?php
$val1 = array('Language', 'Math', 'Science', 'Geography');
$cval = current($val1);
echo "$cval <br />";
$cval = next($val1);
echo "$cval <br />";
$cval = next($val1);
echo "$cval <br />";
$cval = prev($val1);
echo "$cval <br />";
?>
Output:
Language Math Science Math
View the example in the browser
Practice here online :
See also