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<title>Write data to a file asynchronously</title>
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<h1 class="refname">swoole_async_writefile</h1>
<p class="verinfo">(PHP 5 >= 5.2.0, PHP 7, PECL swoole >= 1.9.0)</p><p class="refpurpose"><span class="refname">swoole_async_writefile</span> — <span class="dc-title">Write data to a file asynchronously</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.swoole-async-writefile-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">bool</span> <span class="methodname"><strong>swoole_async_writefile</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$filename</code></span>
, <span class="methodparam"><span class="type">string</span> <code class="parameter">$content</code></span>
[, <span class="methodparam"><span class="type"><a href="language.types.callable.html" class="type callable">callable</a></span> <code class="parameter">$callback</code></span>
[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$flags</code><span class="initializer"> = 0</span></span>
]] )</div>
<p class="para rdfs-comment">
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.swoole-async-writefile-parameters">
<h3 class="title">Parameters</h3>
<dl>
<dt>
<code class="parameter">filename</code></dt>
<dd>
<p class="para">
The filename being written.
</p>
</dd>
<dt>
<code class="parameter">content</code></dt>
<dd>
<p class="para">
The content writing to the file.
</p>
</dd>
<dt>
<code class="parameter">callback</code></dt>
<dd>
<p class="para">
</p>
</dd>
<dt>
<code class="parameter">flags</code></dt>
<dd>
<p class="para">
</p>
</dd>
</dl>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.swoole-async-writefile-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns <strong><code>TRUE</code></strong> on success or <strong><code>FALSE</code></strong> on failure.
</p>
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