current
(PHP 4, PHP 5)
current — Return the current element in an array
Description
Every array has an internal pointer to its "current" element, which is initialized to the first element inserted into the array.
The current() function simply returns the value of the array element that's currently being pointed to by the internal pointer. It does not move the pointer in any way. If the internal pointer points beyond the end of the elements list, current() returns FALSE.
Den här funktionen kan returnera det booleska värdet FALSE, men den kan också returnera ett icke-booleskt värde som är likvärdigt med FALSE, till exempel 0 eller "". Vänligen läs sektionen om booleska datatyper för mer information. Använd ===- operatorn för att testa returvärdet från den här funktionen.
Note: You won't be able to distinguish the end of an array from a boolean FALSE element. To properly traverse an array which may contain FALSE elements, see the each() function.
Example#1 Example use of current() and friends
<?php
$transport = array('foot', 'bike', 'car', 'plane');
$mode = current($transport); // $mode = 'foot';
$mode = next($transport); // $mode = 'bike';
$mode = current($transport); // $mode = 'bike';
$mode = prev($transport); // $mode = 'foot';
$mode = end($transport); // $mode = 'plane';
$mode = current($transport); // $mode = 'plane';
?>