rsort

實例

例子1

對數組$cars 中的元素按字母進行降序排序：

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

親自試一試

例子2

對數組$numbers 中的元素按數字進行降序排序：

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

親自試一試

例子3

把項目作為數字來比較，並對數組$cars 中的元素進行降序排序：

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

親自試一試