Home > php教程 > php手册 > body text

Convert KB to KB and above

WBOY
Release: 2016-09-15 11:14:43
Original
1389 people have browsed it
<span style="color: #008080;"> 1</span> <span style="color: #008000;">/*</span><span style="color: #008000;">*
</span><span style="color: #008080;"> 2</span> <span style="color: #008000;">*    把KB转化为KB及以上单位
</span><span style="color: #008080;"> 3</span> <span style="color: #008000;">*    @param int $kb
</span><span style="color: #008080;"> 4</span> <span style="color: #008000;">*    @return string $new_val
</span><span style="color: #008080;"> 5</span> <span style="color: #008000;">*/</span>
<span style="color: #008080;"> 6</span> <span style="color: #0000ff;">function</span> return_over_kb(<span style="color: #800080;">$kb</span><span style="color: #000000;">)
</span><span style="color: #008080;"> 7</span> <span style="color: #000000;">{
</span><span style="color: #008080;"> 8</span>     <span style="color: #800080;">$kb</span> /= 1024<span style="color: #000000;">;
</span><span style="color: #008080;"> 9</span>     <span style="color: #800080;">$unit</span> = 0; <span style="color: #008000;">//</span><span style="color: #008000;"> 0KB/MB 1GB 2TB 3PB 4EB</span>
<span style="color: #008080;">10</span>     <span style="color: #0000ff;">while</span> (<span style="color: #800080;">$kb</span> >= 1024<span style="color: #000000;">) {
</span><span style="color: #008080;">11</span>         <span style="color: #800080;">$kb</span> /= 1024<span style="color: #000000;">;
</span><span style="color: #008080;">12</span>         <span style="color: #800080;">$unit</span>++<span style="color: #000000;">;
</span><span style="color: #008080;">13</span> <span style="color: #000000;">    }
</span><span style="color: #008080;">14</span>     <span style="color: #0000ff;">switch</span> (<span style="color: #800080;">$unit</span><span style="color: #000000;">) {
</span><span style="color: #008080;">15</span>         <span style="color: #0000ff;">case</span> 1: <span style="color: #800080;">$b</span> = 'GB'; <span style="color: #0000ff;">break</span><span style="color: #000000;">;
</span><span style="color: #008080;">16</span>         <span style="color: #0000ff;">case</span> 2: <span style="color: #800080;">$b</span> = 'TB'; <span style="color: #0000ff;">break</span><span style="color: #000000;">;
</span><span style="color: #008080;">17</span>         <span style="color: #0000ff;">case</span> 3: <span style="color: #800080;">$b</span> = 'PB'; <span style="color: #0000ff;">break</span><span style="color: #000000;">;
</span><span style="color: #008080;">18</span>         <span style="color: #0000ff;">case</span> 4: <span style="color: #800080;">$b</span> = 'EB'; <span style="color: #0000ff;">break</span><span style="color: #000000;">;
</span><span style="color: #008080;">19</span>         <span style="color: #0000ff;">default</span>: 
<span style="color: #008080;">20</span>             <span style="color: #0000ff;">if</span> (<span style="color: #800080;">$kb</span> >= 1<span style="color: #000000;">) {
</span><span style="color: #008080;">21</span>                 <span style="color: #800080;">$b</span> = 'MB'<span style="color: #000000;">;
</span><span style="color: #008080;">22</span>             } <span style="color: #0000ff;">else</span><span style="color: #000000;"> {
</span><span style="color: #008080;">23</span>                 <span style="color: #800080;">$b</span> = 'KB'<span style="color: #000000;">;
</span><span style="color: #008080;">24</span> <span style="color: #000000;">            }
</span><span style="color: #008080;">25</span>         <span style="color: #0000ff;">break</span><span style="color: #000000;">;
</span><span style="color: #008080;">26</span> <span style="color: #000000;">    }
</span><span style="color: #008080;">27</span> 
<span style="color: #008080;">28</span>     <span style="color: #0000ff;">if</span> (<span style="color: #800080;">$unit</span> == 0) { <span style="color: #008000;">//</span><span style="color: #008000;"> 要么是KB 要么是MB</span>
<span style="color: #008080;">29</span>         <span style="color: #0000ff;">if</span> (<span style="color: #800080;">$kb</span> < 1<span style="color: #000000;">) {
</span><span style="color: #008080;">30</span>             <span style="color: #800080;">$kb</span> *= 1024<span style="color: #000000;">;
</span><span style="color: #008080;">31</span> <span style="color: #000000;">        }
</span><span style="color: #008080;">32</span> <span style="color: #000000;">    }
</span><span style="color: #008080;">33</span> 
<span style="color: #008080;">34</span>     <span style="color: #0000ff;">return</span> <span style="color: #008080;">round</span>(<span style="color: #800080;">$kb</span>, 1) . <span style="color: #800080;">$b</span><span style="color: #000000;">;
</span><span style="color: #008080;">35</span> }
Copy after login

 

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
About us Disclaimer Sitemap
php.cn:Public welfare online PHP training,Help PHP learners grow quickly!