range

名称:range

分类:数组

所属语言:php

一句话介绍:创建包含指定范围单元的数组。

实例

例子 1

创建一个包含从 "0" 到 "5" 之间的元素范围的数组：

<span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$number</span> <span class="token operator">=</span> <span class="token function"></span><mark><span class="token function">range</span><span class="token punctuation">(</span><span class="token number">0</span><span class="token punctuation">,</span><span class="token number">5</span><span class="token punctuation">)</span></mark><span class="token punctuation"></span><span class="token punctuation">;</span>
<span class="token function">print_r</span> <span class="token punctuation">(</span><span class="token variable">$number</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

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例子 2

返回包含 "0" 至 "50" 之间并以 10 递增的元素的数组：

<span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$number</span> <span class="token operator">=</span> <span class="token function"></span><mark><span class="token function">range</span><span class="token punctuation">(</span><span class="token number">0</span><span class="token punctuation">,</span><span class="token number">50</span><span class="token punctuation">,</span><span class="token number">10</span><span class="token punctuation">)</span></mark><span class="token punctuation"></span><span class="token punctuation">;</span>
<span class="token function">print_r</span> <span class="token punctuation">(</span><span class="token variable">$number</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

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例子 3

使用字母 - 返回包含从 "a" 到 "d" 之间的元素的数组：

<span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$letter</span> <span class="token operator">=</span> <span class="token function"></span><mark><span class="token function">range</span><span class="token punctuation">(</span><span class="token string double-quoted-string">"a"</span><span class="token punctuation">,</span><span class="token string double-quoted-string">"d"</span><span class="token punctuation">)</span></mark><span class="token punctuation"></span><span class="token punctuation">;</span>
<span class="token function">print_r</span> <span class="token punctuation">(</span><span class="token variable">$letter</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

亲自试一试