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<title>Split a string into smaller chunks</title>
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<h1 class="refname">chunk_split</h1>
<p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">chunk_split</span> — <span class="dc-title">Split a string into smaller chunks</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.chunk-split-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">string</span> <span class="methodname"><strong>chunk_split</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$body</code></span>
[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$chunklen</code><span class="initializer"> = 76</span></span>
[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$end</code><span class="initializer"> = "\r\n"</span></span>
]] )</div>
<p class="para rdfs-comment">
Can be used to split a string into smaller chunks which is useful for
e.g. converting <span class="function"><a href="function.base64-encode.html" class="function">base64_encode()</a></span> output to match RFC
2045 semantics. It inserts <em><code class="parameter">end</code></em> every
<em><code class="parameter">chunklen</code></em> characters.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.chunk-split-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">body</code></em></span>
<dd>
<p class="para">
The string to be chunked.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">chunklen</code></em></span>
<dd>
<p class="para">
The chunk length.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">end</code></em></span>
<dd>
<p class="para">
The line ending sequence.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.chunk-split-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns the chunked string.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.chunk-split-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-4819">
<p><strong>Example #1 <span class="function"><strong>chunk_split()</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: #FF8000">// format $data using RFC 2045 semantics<br /></span><span style="color: #0000BB">$new_string </span><span style="color: #007700">= </span><span style="color: #0000BB">chunk_split</span><span style="color: #007700">(</span><span style="color: #0000BB">base64_encode</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.chunk-split-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.str-split.html" class="function" rel="rdfs-seeAlso">str_split()</a> - Convert a string to an array</span></li>
<li class="member"> <span class="function"><a href="function.explode.html" class="function" rel="rdfs-seeAlso">explode()</a> - Split a string by string</span></li>
<li class="member"> <span class="function"><a href="function.split.html" class="function" rel="rdfs-seeAlso">split()</a> - Split string into array by regular expression</span></li>
<li class="member"> <span class="function"><a href="function.wordwrap.html" class="function" rel="rdfs-seeAlso">wordwrap()</a> - Wraps a string to a given number of characters</span></li>
<li class="member"><a href="http://www.faqs.org/rfcs/rfc2045" class="link external">» RFC 2045</a></li>
</ul>
</p>
</div>
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