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120 lines
4.4 KiB
HTML
120 lines
4.4 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>验证一个格里高里日期</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.checkdate" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">checkdate</h1>
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<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">checkdate</span> — <span class="dc-title">验证一个格里高里日期</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.checkdate-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>checkdate</strong></span>
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( <span class="methodparam"><span class="type">int</span> <code class="parameter">$month</code></span>
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, <span class="methodparam"><span class="type">int</span> <code class="parameter">$day</code></span>
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, <span class="methodparam"><span class="type">int</span> <code class="parameter">$year</code></span>
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) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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检查由参数构成的日期的合法性。如果每个参数都正确定义了则会被认为是有效的。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.checkdate-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">month</code></dt>
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<dd>
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<p class="para">
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month 的值是从 1 到 12。
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</p>
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</dd>
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<dt>
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<code class="parameter">day</code></dt>
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<dd>
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<p class="para">
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<code class="parameter">Day</code> 的值在给定的 <code class="parameter">month</code>
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所应该具有的天数范围之内，闰年已经考虑进去了。
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</p>
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</dd>
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<dt>
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<code class="parameter">year</code></dt>
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<dd>
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<p class="para">
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year 的值是从 1 到 32767。
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.checkdate-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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如果给出的日期有效则返回 <strong><code>TRUE</code></strong>，否则返回
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<strong><code>FALSE</code></strong>。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.checkdate-examples">
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<h3 class="title">范例</h3>
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<p class="para">
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<div class="example" id="example-2700">
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<p><strong>Example #1 <span class="function"><strong>checkdate()</strong></span> 例子</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">checkdate</span><span style="color: #007700">(</span><span style="color: #0000BB">12</span><span style="color: #007700">, </span><span style="color: #0000BB">31</span><span style="color: #007700">, </span><span style="color: #0000BB">2000</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">checkdate</span><span style="color: #007700">(</span><span style="color: #0000BB">2</span><span style="color: #007700">, </span><span style="color: #0000BB">29</span><span style="color: #007700">, </span><span style="color: #0000BB">2001</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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<div class="example-contents"><p>以上例程会输出：</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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bool(true)
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bool(false)
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</pre></div>
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</div>
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</div>
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.checkdate-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="mktime.html" class="function" rel="rdfs-seeAlso">mktime()</a> - 取得一个日期的 Unix 时间戳</span></li>
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<li class="member"><span class="function"><a href="strtotime.html" class="function" rel="rdfs-seeAlso">strtotime()</a> - 将任何字符串的日期时间描述解析为 Unix 时间戳</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |