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<title>Return the number of days in a month for a given year and calendar</title>
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<h1 class="refname">cal_days_in_month</h1>
<p class="verinfo">(PHP 4 >= 4.1.0, PHP 5)</p><p class="refpurpose"><span class="refname">cal_days_in_month</span> — <span class="dc-title">Return the number of days in a month for a given year and calendar</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.cal-days-in-month-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">int</span> <span class="methodname"><strong>cal_days_in_month</strong></span>
( <span class="methodparam"><span class="type">int</span> <code class="parameter">$calendar</code></span>
, <span class="methodparam"><span class="type">int</span> <code class="parameter">$month</code></span>
, <span class="methodparam"><span class="type">int</span> <code class="parameter">$year</code></span>
)</div>
<p class="para rdfs-comment">
This function will return the number of days in the
<em><code class="parameter">month</code></em> of <em><code class="parameter">year</code></em> for
the specified <em><code class="parameter">calendar</code></em>.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.cal-days-in-month-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">calendar</code></em></span>
<dd>
<p class="para">
Calendar to use for calculation
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">month</code></em></span>
<dd>
<p class="para">
Month in the selected calendar
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">year</code></em></span>
<dd>
<p class="para">
Year in the selected calendar
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.cal-days-in-month-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
The length in days of the selected month in the given calendar
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.cal-days-in-month-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-2243">
<p><strong>Example #1 <span class="function"><strong>cal_days_in_month()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$num </span><span style="color: #007700">= </span><span style="color: #0000BB">cal_days_in_month</span><span style="color: #007700">(</span><span style="color: #0000BB">CAL_GREGORIAN</span><span style="color: #007700">, </span><span style="color: #0000BB">8</span><span style="color: #007700">, </span><span style="color: #0000BB">2003</span><span style="color: #007700">); </span><span style="color: #FF8000">// 31<br /></span><span style="color: #007700">echo </span><span style="color: #DD0000">"There was </span><span style="color: #0000BB">$num</span><span style="color: #DD0000"> days in August 2003"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
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