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<title>Verify that the contents of a variable is a countable value</title>
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<div class="refnamediv">
<h1 class="refname">is_countable</h1>
<p class="verinfo">(PHP 7 >= 7.3.0)</p><p class="refpurpose"><span class="refname">is_countable</span> — <span class="dc-title">
Verify that the contents of a variable is a countable value
</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.is-countable-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">bool</span> <span class="methodname"><strong>is_countable</strong></span>
( <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$var</code></span>
)</div>
<p class="para rdfs-comment">
Verify that the contents of a variable is an <span class="type"><a href="language.types.array.html" class="type array">array</a></span> or
an object implementing <a href="class.countable.html" class="classname">Countable</a>
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.is-countable-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">var</code></dt>
<dd>
<p class="para">
The value to check
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.is-countable-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns <strong><code>TRUE</code></strong> if <code class="parameter">var</code> is countable, <strong><code>FALSE</code></strong>
otherwise.
</p>
</div>
<div class="refsect1 changelog" id="refsect1-function.is-countable-changelog">
<h3 class="title">Changelog</h3>
<table class="doctable informaltable">
<thead>
<tr>
<th>Version</th>
<th>Description</th>
</tr>
</thead>
<tbody class="tbody">
<tr>
<td>7.3.0</td>
<td>
<span class="function"><strong>is_countable()</strong></span> has been added.
</td>
</tr>
</tbody>
</table>
</div>
<div class="refsect1 examples" id="refsect1-function.is-countable-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-6500">
<p><strong>Example #1 <span class="function"><strong>is_countable()</strong></span> examples</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">is_countable</span><span style="color: #007700">([</span><span style="color: #0000BB">1</span><span style="color: #007700">, </span><span style="color: #0000BB">2</span><span style="color: #007700">, </span><span style="color: #0000BB">3</span><span style="color: #007700">])); </span><span style="color: #FF8000">// bool(true)<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">is_countable</span><span style="color: #007700">(new </span><span style="color: #0000BB">ArrayIterator</span><span style="color: #007700">([</span><span style="color: #DD0000">'foo'</span><span style="color: #007700">, </span><span style="color: #DD0000">'bar'</span><span style="color: #007700">, </span><span style="color: #DD0000">'baz'</span><span style="color: #007700">]))); </span><span style="color: #FF8000">// bool(true)<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">is_countable</span><span style="color: #007700">(new </span><span style="color: #0000BB">ArrayIterator</span><span style="color: #007700">())); </span><span style="color: #FF8000">// bool(true)<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">is_countable</span><span style="color: #007700">(new </span><span style="color: #0000BB">stdClass</span><span style="color: #007700">())); </span><span style="color: #FF8000">// bool(false)</span>
</span>
</code></div>
</div>
</div>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.is-countable-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"><span class="function"><a href="function.is-array.html" class="function" rel="rdfs-seeAlso">is_array()</a> - Finds whether a variable is an array</span></li>
<li class="member"><span class="function"><a href="function.is-object.html" class="function" rel="rdfs-seeAlso">is_object()</a> - Finds whether a variable is an object</span></li>
<li class="member"><span class="function"><a href="function.is-iterable.html" class="function" rel="rdfs-seeAlso">is_iterable()</a> - Verify that the contents of a variable is an iterable value</span></li>
<li class="member"><span class="function"><a href="function.is-bool.html" class="function" rel="rdfs-seeAlso">is_bool()</a> - Finds out whether a variable is a boolean</span></li>
</ul>
</p>
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