php-doc-en/reference/url/functions/rawurldecode.xml

<?xml version="1.0" encoding="iso-8859-1"?>
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  <refentry id="function.rawurldecode">
   <refnamediv>
    <refname>rawurldecode</refname>
    <refpurpose>Decode URL-encoded strings</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>string</type><methodname>rawurldecode</methodname>
      <methodparam><type>string</type><parameter>str</parameter></methodparam>
     </methodsynopsis>
    <para>
     Returns a string in which the sequences with percent
     (<literal>%</literal>) signs followed by two hex digits have been
     replaced with literal characters.
    </para>
    <para>
     <example>
      <title><function>rawurldecode</function> example</title>
      <programlisting role="php">
<![CDATA[
<?php

echo rawurldecode('foo%20bar%40baz'); // foo bar@baz

?>
]]>
      </programlisting>
     </example>
    </para>
    <note>
     <para>
      <function>rawurldecode</function> does not decode plus symbols ('+')
      into spaces. <function>urldecode</function> does.
     </para>
    </note>
    <simpara>
     See also <function>rawurlencode</function>,
     <function>urldecode</function> and
     <function>urlencode</function>.
    </simpara>
   </refsect1>
  </refentry>

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