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<h1 class="refname">floor</h1>
<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">floor</span> — <span class="dc-title">Round fractions down</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.floor-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">float</span> <span class="methodname"><strong>floor</strong></span>
( <span class="methodparam"><span class="type">float</span> <code class="parameter">$value</code></span>
)</div>
<p class="simpara">
Returns the next lowest integer value (as float) by rounding down
<code class="parameter">value</code> if necessary.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.floor-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">value</code></dt>
<dd>
<p class="para">
The numeric value to round
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.floor-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
<code class="parameter">value</code> rounded to the next lowest integer.
The return value of <span class="function"><strong>floor()</strong></span> is still of type
<span class="type"><a href="language.types.float.html" class="type float">float</a></span> because the value range of <span class="type"><a href="language.types.float.html" class="type float">float</a></span> is
usually bigger than that of <span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>.
This function returns <strong><code>FALSE</code></strong> in case of an error (e.g. passing an array).
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.floor-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-4255">
<p><strong>Example #1 <span class="function"><strong>floor()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /></span><span style="color: #007700">echo </span><span style="color: #0000BB">floor</span><span style="color: #007700">(</span><span style="color: #0000BB">4.3</span><span style="color: #007700">); </span><span style="color: #FF8000">// 4<br /></span><span style="color: #007700">echo </span><span style="color: #0000BB">floor</span><span style="color: #007700">(</span><span style="color: #0000BB">9.999</span><span style="color: #007700">); </span><span style="color: #FF8000">// 9<br /></span><span style="color: #007700">echo </span><span style="color: #0000BB">floor</span><span style="color: #007700">(-</span><span style="color: #0000BB">3.14</span><span style="color: #007700">); </span><span style="color: #FF8000">// -4<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.floor-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"><span class="function"><a href="function.ceil.html" class="function" rel="rdfs-seeAlso">ceil()</a> - Round fractions up</span></li>
<li class="member"><span class="function"><a href="function.round.html" class="function" rel="rdfs-seeAlso">round()</a> - Rounds a float</span></li>
</ul>
</p>
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