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<title>Convert a string to an array</title>
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<div class="refnamediv">
<h1 class="refname">str_split</h1>
<p class="verinfo">(PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">str_split</span> — <span class="dc-title">Convert a string to an array</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.str-split-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">array</span> <span class="methodname"><strong>str_split</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$string</code></span>
[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$split_length</code><span class="initializer"> = 1</span></span>
] )</div>
<p class="para rdfs-comment">
Converts a string to an array.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.str-split-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">string</code></dt>
<dd>
<p class="para">
The input string.
</p>
</dd>
<dt>
<code class="parameter">split_length</code></dt>
<dd>
<p class="para">
Maximum length of the chunk.
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.str-split-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
If the optional <code class="parameter">split_length</code> parameter is
specified, the returned array will be broken down into chunks with each
being <code class="parameter">split_length</code> in length, otherwise each chunk
will be one character in length.
</p>
<p class="para">
<strong><code>FALSE</code></strong> is returned if <code class="parameter">split_length</code> is less than 1.
If the <code class="parameter">split_length</code> length exceeds the length of
<code class="parameter">string</code>, the entire string is returned as the first
(and only) array element.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.str-split-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-6090">
<p><strong>Example #1 Example uses of <span class="function"><strong>str_split()</strong></span></strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /><br />$str </span><span style="color: #007700">= </span><span style="color: #DD0000">"Hello Friend"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$arr1 </span><span style="color: #007700">= </span><span style="color: #0000BB">str_split</span><span style="color: #007700">(</span><span style="color: #0000BB">$str</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$arr2 </span><span style="color: #007700">= </span><span style="color: #0000BB">str_split</span><span style="color: #007700">(</span><span style="color: #0000BB">$str</span><span style="color: #007700">, </span><span style="color: #0000BB">3</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$arr1</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$arr2</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
<div class="example-contents"><p>The above example will output:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
Array
(
[0] => H
[1] => e
[2] => l
[3] => l
[4] => o
[5] =>
[6] => F
[7] => r
[8] => i
[9] => e
[10] => n
[11] => d
)
Array
(
[0] => Hel
[1] => lo
[2] => Fri
[3] => end
)
</pre></div>
</div>
</div>
</p>
</div>
<div class="refsect1 notes" id="refsect1-function.str-split-notes">
<h3 class="title">Notes</h3>
<blockquote class="note"><p><strong class="note">Note</strong>:
<p class="para">
<span class="function"><strong>str_split()</strong></span> will split into bytes, rather than characters when dealing with a multi-byte encoded string.
</p>
</p></blockquote>
</div>
<div class="refsect1 seealso" id="refsect1-function.str-split-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"><span class="function"><a href="function.chunk-split.html" class="function" rel="rdfs-seeAlso">chunk_split()</a> - Split a string into smaller chunks</span></li>
<li class="member"><span class="function"><a href="function.preg-split.html" class="function" rel="rdfs-seeAlso">preg_split()</a> - Split string by a regular expression</span></li>
<li class="member"><span class="function"><a href="function.explode.html" class="function" rel="rdfs-seeAlso">explode()</a> - Split a string by a string</span></li>
<li class="member"><span class="function"><a href="function.count-chars.html" class="function" rel="rdfs-seeAlso">count_chars()</a> - Return information about characters used in a string</span></li>
<li class="member"><span class="function"><a href="function.str-word-count.html" class="function" rel="rdfs-seeAlso">str_word_count()</a> - Return information about words used in a string</span></li>
<li class="member"><a href="control-structures.for.html" class="link">for</a></li>
</ul>
</p>
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