srand

实例

在本例中，我们将播种随机数发生器：

<span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token function">srand</span><span class="token punctuation">(</span><span class="token function">mktime</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">echo</span><span class="token punctuation">(</span><span class="token function">rand</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

亲自试一试