pg-set-client-encoding.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- EN-Revision: c2eca73ef79ebe78cebb34053e41b565af504c4f Maintainer: dallas Status: ready -->
<!-- CREDITS: mowangjuanzi -->
<!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.16 -->
<refentry xml:id="function.pg-set-client-encoding" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>pg_set_client_encoding</refname>
  <refpurpose>
   设定客户端编码
  </refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>int</type><methodname>pg_set_client_encoding</methodname>
   <methodparam choice="opt"><type>PgSql\Connection</type><parameter>connection</parameter></methodparam>
   <methodparam><type>string</type><parameter>encoding</parameter></methodparam>
  </methodsynopsis>
  <para>
   <function>pg_set_client_encoding</function> 设定客户端编码，成功返回 0，出错返回 -1。
  </para>
  <para>
   PostgreSQL 会自动将后端数据库编码中的数据转换成前端编码。
  </para>
  <note>
   <para>
    本函数以前的名字为 <function>pg_setclientencoding</function>。
   </para>
  </note>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>connection</parameter></term>
     <listitem>
      &pgsql.parameter.connection-with-unspecified-default;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>encoding</parameter></term>
     <listitem>
      <para>
       必需的客户端编码。<literal>SQL_ASCII</literal>、<literal>EUC_JP</literal>、<literal>EUC_CN</literal>、<literal>EUC_KR</literal>、<literal>EUC_TW</literal>、<literal>UNICODE</literal>、<literal>MULE_INTERNAL</literal>、<literal>LATINX</literal> (X=1...9)、<literal>KOI8</literal>、<literal>WIN</literal>、<literal>ALT</literal>、<literal>SJIS</literal>、<literal>BIG5</literal>
       或 <literal>WIN1250</literal> 中的一个。
      </para>
      <para>
       确切有效的编码列表取决于 PostgreSQL 版本，因此查阅 PostgreSQL 手册获取更具体的列表。
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   成功时返回 <literal>0</literal> 失败时返回 <literal>-1</literal>。
  </para>
 </refsect1>

 <refsect1 role="changelog">
  &reftitle.changelog;
  <informaltable>
   <tgroup cols="2">
    <thead>
     <row>
      <entry>&Version;</entry>
      <entry>&Description;</entry>
     </row>
    </thead>
    <tbody>
     &pgsql.changelog.connection-object;
    </tbody>
   </tgroup>
  </informaltable>
 </refsect1>

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

$conn = pg_pconnect("dbname=publisher");
if (!$conn) {
  echo "An error occurred.\n";
  exit;
}

// Set the client encoding to UNICODE.  Data will be automatically
// converted from the backend encoding to the frontend.
pg_set_client_encoding($conn, "UNICODE");

$result = pg_query($conn, "SELECT author, email FROM authors");
if (!$result) {
  echo "An error occurred.\n";
  exit;
}

// Write out UTF-8 data
while ($row = pg_fetch_row($result)) {
  echo "Author: $row[0]  E-mail: $row[1]";
  echo "<br />\n";
}
 
?>
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>
 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>pg_client_encoding</function></member>
   </simplelist>
  </para>
 </refsect1>
</refentry>

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