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<title>Decodes URL-encoded string</title>
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<div class="refnamediv">
<h1 class="refname">urldecode</h1>
<p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">urldecode</span> — <span class="dc-title">Decodes URL-encoded string</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.urldecode-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">string</span> <span class="methodname"><strong>urldecode</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$str</code></span>
)</div>
<p class="para rdfs-comment">
Decodes any <em>%<span class="replaceable">##</span></em>
encoding in the given string. Plus symbols ('<em>+</em>') are
decoded to a space character.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.urldecode-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">str</code></em></span>
<dd>
<p class="para">
The string to be decoded.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.urldecode-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns the decoded string.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.urldecode-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-4094">
<p><strong>Example #1 <span class="function"><strong>urldecode()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$query </span><span style="color: #007700">= </span><span style="color: #DD0000">"my=apples&are=green+and+red"</span><span style="color: #007700">;<br /><br />foreach (</span><span style="color: #0000BB">explode</span><span style="color: #007700">(</span><span style="color: #DD0000">'&'</span><span style="color: #007700">, </span><span style="color: #0000BB">$query</span><span style="color: #007700">) as </span><span style="color: #0000BB">$chunk</span><span style="color: #007700">) {<br /> </span><span style="color: #0000BB">$param </span><span style="color: #007700">= </span><span style="color: #0000BB">explode</span><span style="color: #007700">(</span><span style="color: #DD0000">"="</span><span style="color: #007700">, </span><span style="color: #0000BB">$chunk</span><span style="color: #007700">);<br /><br /> if (</span><span style="color: #0000BB">$param</span><span style="color: #007700">) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Value for parameter \"%s\" is \"%s\"<br/>\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">urldecode</span><span style="color: #007700">(</span><span style="color: #0000BB">$param</span><span style="color: #007700">[</span><span style="color: #0000BB">0</span><span style="color: #007700">]), </span><span style="color: #0000BB">urldecode</span><span style="color: #007700">(</span><span style="color: #0000BB">$param</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">]));<br /> }<br />}<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
</p>
</div>
<div class="refsect1 notes" id="refsect1-function.urldecode-notes">
<h3 class="title">Notes</h3>
<div class="warning"><strong class="warning">Warning</strong>
<p class="para">
The superglobals <var class="varname"><var class="varname"><a href="reserved.variables.get.html" class="classname">$_GET</a></var></var> and <var class="varname"><var class="varname"><a href="reserved.variables.request.html" class="classname">$_REQUEST</a></var></var>
are already decoded. Using <span class="function"><strong>urldecode()</strong></span> on an element
in <var class="varname"><var class="varname"><a href="reserved.variables.get.html" class="classname">$_GET</a></var></var> or <var class="varname"><var class="varname"><a href="reserved.variables.request.html" class="classname">$_REQUEST</a></var></var> could have
unexpected and dangerous results.
</p>
</div>
</div>
<div class="refsect1 seealso" id="refsect1-function.urldecode-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.urlencode.html" class="function" rel="rdfs-seeAlso">urlencode()</a> - URL-encodes string</span></li>
<li class="member"> <span class="function"><a href="function.rawurlencode.html" class="function" rel="rdfs-seeAlso">rawurlencode()</a> - URL-encode according to RFC 3986</span></li>
<li class="member"> <span class="function"><a href="function.rawurldecode.html" class="function" rel="rdfs-seeAlso">rawurldecode()</a> - Decode URL-encoded strings</span></li>
<li class="member"><a href="http://www.faqs.org/rfcs/rfc3986" class="link external">» RFC 3986</a></li>
</ul>
</p>
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