explode

名稱:explode

分類:字符串

所屬語言:php

一句話介紹:把字符串打散為數組。

實例

例子1

把字符串打散為數組：

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$str</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"Hello world. I love Shanghai!"</span> <span class="token punctuation">;</span>
<span class="token function">print_r</span> <span class="token punctuation">(</span> <span class="token function">explode</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">" "</span> <span class="token punctuation">,</span> <span class="token variable">$str</span> <span class="token punctuation">)</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

使用limit參數來返回一些數組元素：

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$str</span> <span class="token operator">=</span> <span class="token string single-quoted-string">&#39;one,two,three,four&#39;</span> <span class="token punctuation">;</span>

<span class="token comment">// 零<i>limit</i></span>
<span class="token function">print_r</span> <span class="token punctuation">(</span> <span class="token function">explode</span> <span class="token punctuation">(</span> <span class="token string single-quoted-string">&#39;,&#39;</span> <span class="token punctuation">,</span> <span class="token variable">$str</span> <span class="token punctuation">,</span> <span class="token number">0</span> <span class="token punctuation">)</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>

<span class="token comment">// 正的<i>limit</i></span>
<span class="token function">print_r</span> <span class="token punctuation">(</span> <span class="token function">explode</span> <span class="token punctuation">(</span> <span class="token string single-quoted-string">&#39;,&#39;</span> <span class="token punctuation">,</span> <span class="token variable">$str</span> <span class="token punctuation">,</span> <span class="token number">2</span> <span class="token punctuation">)</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>

<span class="token comment">// 負的<i>limit</i></span>
<span class="token function">print_r</span> <span class="token punctuation">(</span> <span class="token function">explode</span> <span class="token punctuation">(</span> <span class="token string single-quoted-string">&#39;,&#39;</span> <span class="token punctuation">,</span> <span class="token variable">$str</span> <span class="token punctuation">,</span> <span class="token operator">-</span> <span class="token number">1</span> <span class="token punctuation">)</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

親自試一試