rsort

名称:rsort

分类:数组

所属语言:php

一句话介绍:对数组逆向排序。

实例

例子 1

对数组 $cars 中的元素按字母进行降序排序：

<span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$cars</span><span class="token operator">=</span><span class="token keyword">array</span><span class="token punctuation">(</span><span class="token string double-quoted-string">"Volvo"</span><span class="token punctuation">,</span><span class="token string double-quoted-string">"BMW"</span><span class="token punctuation">,</span><span class="token string double-quoted-string">"Toyota"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function"></span><mark><span class="token function">rsort</span><span class="token punctuation">(</span><span class="token variable">$cars</span><span class="token punctuation">)</span></mark><span class="token punctuation"></span><span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

亲自试一试

例子 2

对数组 $numbers 中的元素按数字进行降序排序：

<span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$numbers</span><span class="token operator">=</span><span class="token keyword">array</span><span class="token punctuation">(</span><span class="token number">4</span><span class="token punctuation">,</span><span class="token number">6</span><span class="token punctuation">,</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token number">22</span><span class="token punctuation">,</span><span class="token number">11</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function"></span><mark><span class="token function">rsort</span><span class="token punctuation">(</span><span class="token variable">$numbers</span><span class="token punctuation">)</span></mark><span class="token punctuation"></span><span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

亲自试一试

例子 3

把项目作为数字来比较，并对数组 $cars 中的元素进行降序排序：

<span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$cars</span><span class="token operator">=</span><span class="token keyword">array</span><span class="token punctuation">(</span><span class="token string double-quoted-string">"Volvo"</span><span class="token punctuation">,</span><span class="token string double-quoted-string">"BMW"</span><span class="token punctuation">,</span><span class="token string double-quoted-string">"Toyota"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function"></span><mark><span class="token function">rsort</span><span class="token punctuation">(</span><span class="token variable">$cars</span><span class="token punctuation">,</span><span class="token constant">SORT_NUMERIC</span><span class="token punctuation">)</span></mark><span class="token punctuation"></span><span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

亲自试一试