mcrypt-get-cipher-name.xml

<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="function.mcrypt-get-cipher-name" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>mcrypt_get_cipher_name</refname>
  <refpurpose>获取加密算法名称</refpurpose>
 </refnamediv>
 <refsynopsisdiv>
  &warn.deprecated.function-7-1-0.removed-7-2-0;
 </refsynopsisdiv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>string</type><methodname>mcrypt_get_cipher_name</methodname>
   <methodparam><type>int</type><parameter>cipher</parameter></methodparam>
  </methodsynopsis>
  <methodsynopsis>
   <type>string</type><methodname>mcrypt_get_cipher_name</methodname>
   <methodparam><type>string</type><parameter>cipher</parameter></methodparam>
  </methodsynopsis>
  <para>
   <function>mcrypt_get_cipher_name</function> 
   用来获取加密算法名称。
  </para>
  <para>
   libmcrypt 2.2.x 中，<function>mcrypt_get_cipher_name</function>
   接受整数表达的加密算法，
   libmcrypt 2.4.x 及更高版本中，它接受字符串表达的加密算法名称，
   返回的都是字符串表达的名称，如果算法不存在则返回 &false;。
  </para>
 </refsect1>
 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>cipher</parameter></term>
     <listitem>
      &mcrypt.parameter.cipher;
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   本函数返回加密算法名称，
   如果算法不存在返回 &false;。
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>mcrypt_get_cipher_name</function> 示例</title>
    <programlisting role="php">
<![CDATA[
<?php
   $cipher = MCRYPT_TripleDES;

   echo mcrypt_get_cipher_name($cipher);
?>
]]>
    </programlisting>
    &example.outputs;
    <screen>
<![CDATA[
3DES
]]>
    </screen>
   </example>
  </para>
 </refsect1>
</refentry>

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