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<title>Convert binary data into hexadecimal representation</title>
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<h1 class="refname">bin2hex</h1>
<p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">bin2hex</span> — <span class="dc-title">Convert binary data into hexadecimal representation</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.bin2hex-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">string</span> <span class="methodname"><strong>bin2hex</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$str</code></span>
)</div>
<p class="para rdfs-comment">
Returns an ASCII string containing the hexadecimal representation
of <em><code class="parameter">str</code></em>. The conversion is done byte-wise
with the high-nibble first.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.bin2hex-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">str</code></em></span>
<dd>
<p class="para">
A string.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.bin2hex-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns the hexadecimal representation of the given string.
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.bin2hex-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.hex2bin.html" class="function" rel="rdfs-seeAlso">hex2bin()</a> - Decodes a hexadecimally encoded binary string</span></li>
<li class="member"> <span class="function"><a href="function.pack.html" class="function" rel="rdfs-seeAlso">pack()</a> - Pack data into binary string</span></li>
</ul>
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