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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Returns the installation character set</title>
</head>
<body class="docs"><div id="layout">
<div id="layout-content"><div id="function.ingres-charset" class="refentry">
<div class="refnamediv">
<h1 class="refname">ingres_charset</h1>
<p class="verinfo">(PECL ingres &gt;= 2.1.0)</p><p class="refpurpose"><span class="refname">ingres_charset</span> &mdash; <span class="dc-title">Returns the installation character set</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.ingres-charset-description">
<h3 class="title">说明</h3>
<div class="methodsynopsis dc-description">
<span class="methodname"><strong>ingres_charset</strong></span>
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$link</code></span>
) : <span class="type">string</span></div>
<p class="para rdfs-comment">
<span class="function"><strong>ingres_charset()</strong></span> is called to determine the character
set being used by the Ingres client, from II_CHARSETxx (where xx is the
installation code).
</p>
<blockquote class="note"><p><strong class="note">Note</strong>:
<p class="para">
You can override the value returned by using the function
<span class="function"><a href="putenv.html" class="function">putenv()</a></span>. Changing the value of II_CHARSETxx in a
running Ingres installation can cause data corruption.
</p>
</p></blockquote>
</div>
<div class="refsect1 parameters" id="refsect1-function.ingres-charset-parameters">
<h3 class="title">参数</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">link</code></dt>
<dd>
<p class="para">
The connection link identifier
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.ingres-charset-returnvalues">
<h3 class="title">返回值</h3>
<p class="para">
Returns a string with the value for II_CHARSETxx or returns NULL if the value
could not be determined.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.ingres-charset-examples">
<h3 class="title">范例</h3>
<p class="para">
<div class="example" id="example-1297">
<p><strong>Example #1 <span class="function"><strong>ingres_charset()</strong></span> - Get the installation character set</strong></p>
<div class="example-contents">
<div class="phpcode"><pre><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$link&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">ingres_connect</span><span style="color: #007700">(</span><span style="color: #0000BB">$database</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$user</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$password</span><span style="color: #007700">);<br /><br />echo&nbsp;</span><span style="color: #0000BB">ingres_charset</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">)&nbsp;.&nbsp;</span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">ingres_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</pre></div>
</div>
</div>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.ingres-charset-seealso">
<h3 class="title">参见</h3>
<p class="para">
<ul class="simplelist">
<li class="member"><span class="function"><a href="ingres_connect.html" class="function" rel="rdfs-seeAlso">ingres_connect()</a> - Open a connection to an Ingres database</span></li>
<li class="member"><span class="function"><a href="ingres_query.html" class="function" rel="rdfs-seeAlso">ingres_query()</a> - Send an SQL query to Ingres</span></li>
</ul>
</p>
</div>
</div></div></div></body></html>