1.current

复制代码 代码如下:

<?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';

?>

2.next

复制代码 代码如下:

<?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';

?>

示例很简单，但是却很实用，希望小伙伴们能够喜欢。