<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="function.pg-set-client-encoding" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>pg_set_client_encoding</refname>
  <refpurpose>
   Set the client encoding
  </refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>int</type><methodname>pg_set_client_encoding</methodname>
   <methodparam choice="opt"><type>resource</type><parameter>connection</parameter></methodparam>
   <methodparam><type>string</type><parameter>encoding</parameter></methodparam>
  </methodsynopsis>
  <para>
   <function>pg_set_client_encoding</function> sets the client
   encoding and returns 0 if success or -1 if error.
  </para>
  <para>
   PostgreSQL will automatically convert data in the backend database
   encoding into the frontend encoding.
  </para>
  <note>
   <para>
    The function used to be called
    <function>pg_setclientencoding</function>.
   </para>
  </note>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>connection</parameter></term>
     <listitem>
      <para>
       PostgreSQL database connection resource.  When 
       <parameter>connection</parameter> is not present, the default connection 
       is used. The default connection is the last connection made by 
       <function>pg_connect</function> or <function>pg_pconnect</function>.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>encoding</parameter></term>
     <listitem>
      <para>
       The required client encoding.  One of <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> or <literal>WIN1250</literal>.
      </para>
      <para>
       The exact list of available encodings depends on your PostgreSQL version, so check your
       PostgreSQL manual for a more specific list.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns 0 on success or -1 on error.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>pg_set_client_encoding</function> example</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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