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<title>Set the stream chunk size</title>
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<h1 class="refname">stream_set_chunk_size</h1>
<p class="verinfo">(PHP 5 >= 5.4.0)</p><p class="refpurpose"><span class="refname">stream_set_chunk_size</span> — <span class="dc-title">Set the stream chunk size</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.stream-set-chunk-size-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">int</span> <span class="methodname"><strong>stream_set_chunk_size</strong></span>
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$fp</code></span>
, <span class="methodparam"><span class="type">int</span> <code class="parameter">$chunk_size</code></span>
)</div>
<p class="para rdfs-comment">
Set the stream chunk size.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.stream-set-chunk-size-parameters">
<h3 class="title">Parameters</h3>
<dl>
<dt>
<span class="term"><em><code class="parameter">fp</code></em></span>
<dd>
<p class="para">
The target stream.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">chunk_size</code></em></span>
<dd>
<p class="para">
The desired new chunk size.
</p>
</dd>
</dt>
</dl>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.stream-set-chunk-size-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns the previous chunk size on success.
</p>
<p class="para">
Will return <strong><code>FALSE</code></strong> if <em><code class="parameter">chunk_size</code></em> is less than 1 or
greater than <strong><code>PHP_INT_MAX</code></strong>.
</p>
</div>
<div class="refsect1 errors" id="refsect1-function.stream-set-chunk-size-errors">
<h3 class="title">Errors/Exceptions</h3>
<p class="para">
Will emit an <strong><code>E_WARNING</code></strong> level error if <em><code class="parameter">chunk_size</code></em>
is less than 1 or greater than <strong><code>PHP_INT_MAX</code></strong>.
</p>
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