目录

PHP next() 函数

❮ PHP 数组参考

示例

输出数组中当前元素和下一个元素的值:

<?php
$people = array("Peter", "Joe", "Glenn", "Cleveland");

echo current($people) . "<br>";
echo next($people);
?>
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定义和用法

next() 函数将内部指针移动到数组中的下一个元素并输出。

相关方法:

  • 上一个()- 将内部指针移动到数组中的前一个元素并输出
  • 当前的()- 返回数组中当前元素的值
  • 结尾()- 将内部指针移动到数组中的最后一个元素并输出
  • 重置()- 将内部指针移动到数组的第一个元素
  • 每个()- 返回当前元素的键和值,并将内部指针向前移动

语法

next( array)

参数值

Parameter Description
array Required. Specifies the array to use


技术细节

返回值: 成功时返回数组中下一个元素的值,如果没有更多元素则返回 FALSE
PHP 版本: 4+

更多示例

示例

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
?>
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❮ PHP 数组参考