<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Decodes data encoded with MIME base64</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="ref.url.html">URL Functions</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.base64-encode.html">base64_encode</a></div> <div class="up"><a href="ref.url.html">URL Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="function.base64-decode" class="refentry"> <div class="refnamediv"> <h1 class="refname">base64_decode</h1> <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">base64_decode</span> — <span class="dc-title">Decodes data encoded with MIME base64</span></p> </div> <div class="refsect1 description" id="refsect1-function.base64-decode-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">string</span> <span class="methodname"><strong>base64_decode</strong></span> ( <span class="methodparam"><span class="type">string</span> <code class="parameter">$data</code></span> [, <span class="methodparam"><span class="type">bool</span> <code class="parameter">$strict</code><span class="initializer"> = false</span></span> ] )</div> <p class="para rdfs-comment"> Decodes a base64 encoded <em><code class="parameter">data</code></em>. </p> </div> <div class="refsect1 parameters" id="refsect1-function.base64-decode-parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><em><code class="parameter">data</code></em></span> <dd> <p class="para"> The encoded data. </p> </dd> </dt> <dt> <span class="term"><em><code class="parameter">strict</code></em></span> <dd> <p class="para"> Returns <strong><code>FALSE</code></strong> if input contains character from outside the base64 alphabet. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues" id="refsect1-function.base64-decode-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns the original data or <strong><code>FALSE</code></strong> on failure. The returned data may be binary. </p> </div> <div class="refsect1 changelog" id="refsect1-function.base64-decode-changelog"> <h3 class="title">Changelog</h3> <p class="para"> <table class="doctable informaltable"> <thead> <tr> <th>Version</th> <th>Description</th> </tr> </thead> <tbody class="tbody"> <tr> <td>5.2.0</td> <td><em><code class="parameter">strict</code></em> added</td> </tr> </tbody> </table> </p> </div> <div class="refsect1 examples" id="refsect1-function.base64-decode-examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example" id="example-4079"> <p><strong>Example #1 <span class="function"><strong>base64_decode()</strong></span> example</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br />$str </span><span style="color: #007700">= </span><span style="color: #DD0000">'VGhpcyBpcyBhbiBlbmNvZGVkIHN0cmluZw=='</span><span style="color: #007700">;<br />echo </span><span style="color: #0000BB">base64_decode</span><span style="color: #007700">(</span><span style="color: #0000BB">$str</span><span style="color: #007700">);<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> This is an encoded string </pre></div> </div> </div> </p> </div> <div class="refsect1 seealso" id="refsect1-function.base64-decode-seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"> <span class="function"><a href="function.base64-encode.html" class="function" rel="rdfs-seeAlso">base64_encode()</a> - Encodes data with MIME base64</span></li> <li class="member"><a href="http://www.faqs.org/rfcs/rfc2045" class="link external">» RFC 2045</a> section 6.8</li> </ul> </p> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="ref.url.html">URL Functions</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.base64-encode.html">base64_encode</a></div> <div class="up"><a href="ref.url.html">URL Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>