php-doc-en/reference/openssl/functions/openssl-decrypt.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->

<refentry xml:id="function.openssl-decrypt" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>openssl_decrypt</refname>
  <refpurpose>Decrypts data</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>string</type><methodname>openssl_decrypt</methodname>
   <methodparam><type>string</type><parameter>data</parameter></methodparam>
   <methodparam><type>string</type><parameter>method</parameter></methodparam>
   <methodparam><type>string</type><parameter>password</parameter></methodparam>
   <methodparam choice="opt"><type>string</type><parameter>raw_input</parameter><initializer>false</initializer></methodparam>
  </methodsynopsis>
  <para>
   Takes a raw or base64 encoded string and decrypts it using a given method and key.
  </para>

  &warn.undocumented.func;

 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>data</parameter></term>
     <listitem>
      <para>
       The data.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>method</parameter></term>
     <listitem>
      <para>
       The cipher method.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>password</parameter></term>
     <listitem>
      <para>
       The password.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>raw_input</parameter></term>
     <listitem>
      <para>
       Setting to &true; will take a raw encoded string,
       otherwise a base64 string is assumed for the
       <parameter>data</parameter> parameter.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   The decrypted string on success&return.falseforfailure;.
  </para>
 </refsect1>

 <refsect1 role="errors">
  &reftitle.errors;
  <para>
   Emits an <constant>E_WARNING</constant> level error if an unknown cipher algorithm
   is passed via the <parameter>method</parameter> parameter.
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>openssl_encrypt</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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