实例
输出数组中的当前元素的值：
<?php
$people = array("Peter", "Joe", "Glenn", "Cleveland");
echo pos($people) . "<br>";
?>
定义和用法
pos() 函数返回数组中的当前元素的值。
该函数是 current() 函数的别名。
每个数组中都有一个内部的指针指向它的"当前"元素，初始指向插入到数组中的第一个元素。
提示：该函数不会移动数组内部指针。
相关的方法：
语法
技术细节
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返回值：
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返回数组中的当前元素的值，如果当前元素为空或者当前元素没有值则返回 FALSE。
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PHP 版本：
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4+
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更多实例
实例 1
所有相关方法的演示：
<?php
$people = array("Peter", "Joe", "Glenn", "Cleveland");
echo
current($people) . "<br>"; // The current element is Peter
echo
next($people) . "<br>"; // The next element of Peter is Joe
echo
current($people) . "<br>"; // Now the current element is Joe
echo prev($people) . "<br>";
// The previous element of Joe is Peter
echo end($people) . "<br>"; //
The last element is Cleveland
echo prev($people) . "<br>"; // The
previous element of Cleveland is Glenn
echo current($people) . "<br>"; //
Now the current element is Glenn
echo reset($people) . "<br>"; // Moves
the internal pointer to the first element of the array, which is Peter
echo next($people) . "<br>"; // The next element of Peter is Joe
print_r (each($people)); // Returns the key and value of the current element
(now Joe), and moves the internal pointer forward
?>
