explode

实例

例子 1

把字符串打散为数组：

<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 参数来返回一些数组元素：

<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">'one,two,three,four'</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">','</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">','</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">// 负的 <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">','</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>

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