Home > php教程 > php手册 > body text

php使用unset()删除数组中某个单元(键)的方法,unset数组

WBOY
Release: 2016-06-13 09:14:23
Original
868 people have browsed it

php使用unset()删除数组中某个单元(键)的方法,unset数组

本文实例讲述了php使用unset()删除数组中某个单元(键)的方法。分享给大家供大家参考。具体分析如下:

unset既可以删除变量,也可以删除数组中某个单元。但要注意的是,数组不会重建索引。

实例如下:

<&#63;php
$arr = array("朝阳区","海淀区","西城区","东城区","丰台区");
unset($arr[3]);
echo "<pre class="brush:php;toolbar:false">";
print_r($arr);
&#63;>
Copy after login

输出结果如下:

Array
(
  [0] => 朝阳区
  [1] => 海淀区
  [2] => 西城区
  [4] => 丰台区
)
Copy after login

希望本文所述对大家的php程序设计有所帮助。

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Recommendations
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template