PHP 数组current和next用法分享

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。