checkdate

实例

检查一些日期是否是有效的格利高里日期：

<span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token function"></span><mark><span class="token function">checkdate</span><span class="token punctuation">(</span><span class="token number">12</span><span class="token punctuation">,</span><span class="token number">31</span><span class="token punctuation">,</span><span class="token operator">-</span><span class="token number">400</span><span class="token punctuation">)</span></mark><span class="token punctuation"></span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">echo</span> <span class="token string double-quoted-string">"<br>"</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token function"></span><mark><span class="token function">checkdate</span><span class="token punctuation">(</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token number">29</span><span class="token punctuation">,</span><span class="token number">2003</span><span class="token punctuation">)</span></mark><span class="token punctuation"></span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">echo</span> <span class="token string double-quoted-string">"<br>"</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token function"></span><mark><span class="token function">checkdate</span><span class="token punctuation">(</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token number">29</span><span class="token punctuation">,</span><span class="token number">2004</span><span class="token punctuation">)</span></mark><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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