uTools-Manuals/docs/php/sybase_pconnect.html
2019-04-28 19:00:34 +08:00

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<title>Open persistent Sybase connection</title>
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<body class="docs"><div id="layout">
<div id="layout-content"><div id="function.sybase-pconnect" class="refentry">
<div class="refnamediv">
<h1 class="refname">sybase_pconnect</h1>
<p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">sybase_pconnect</span> &mdash; <span class="dc-title">Open persistent Sybase connection</span></p>
</div>
<div id="function.sybase-pconnect-refsynopsisdiv">
<div class="warning"><strong class="warning">Warning</strong><p class="simpara">This function was
<em class="emphasis">REMOVED</em> in PHP 7.0.0.</p></div>
</div>
<div class="refsect1 description" id="refsect1-function.sybase-pconnect-description">
<h3 class="title">说明</h3>
<div class="methodsynopsis dc-description">
<span class="methodname"><strong>sybase_pconnect</strong></span>
([ <span class="methodparam"><span class="type">string</span> <code class="parameter">$servername</code></span>
[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$username</code></span>
[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$password</code></span>
[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$charset</code></span>
[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$appname</code></span>
]]]]] ) : <span class="type">resource</span></div>
<p class="para rdfs-comment">
<span class="function"><strong>sybase_pconnect()</strong></span> acts very much like
<span class="function"><a href="sybase_connect.html" class="function">sybase_connect()</a></span> with two major differences.
</p>
<p class="para">
First, when connecting, the function would first try to find a
(persistent) link that&#039;s already open with the same host,
username and password. If one is found, an identifier for it
will be returned instead of opening a new connection.
</p>
<p class="para">
Second, the connection to the SQL server will not be closed when
the execution of the script ends. Instead, the link will remain
open for future use (<span class="function"><a href="sybase_close.html" class="function">sybase_close()</a></span> will not
close links established by <span class="function"><strong>sybase_pconnect()</strong></span>).
</p>
<p class="para">
This type of links is therefore called &#039;persistent&#039;.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.sybase-pconnect-parameters">
<h3 class="title">参数</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">servername</code></dt>
<dd>
<p class="para">
The servername argument has to be a valid servername that is defined
in the &#039;interfaces&#039; file.
</p>
</dd>
<dt>
<code class="parameter">username</code></dt>
<dd>
<p class="para">
Sybase user name
</p>
</dd>
<dt>
<code class="parameter">password</code></dt>
<dd>
<p class="para">
Password associated with <code class="parameter">username</code>.
</p>
</dd>
<dt>
<code class="parameter">charset</code></dt>
<dd>
<p class="para">
Specifies the charset for the connection
</p>
</dd>
<dt>
<code class="parameter">appname</code></dt>
<dd>
<p class="para">
Specifies an <em>appname</em> for the Sybase connection.
This allow you to make separate connections in the same script to the
same database. This may come handy when you have started a transaction
in your current connection, and you need to be able to do a separate
query which cannot be performed inside this transaction.
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.sybase-pconnect-returnvalues">
<h3 class="title">返回值</h3>
<p class="para">
Returns a positive Sybase persistent link identifier on success, or
<strong><code>FALSE</code></strong> on error.
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.sybase-pconnect-seealso">
<h3 class="title">参见</h3>
<p class="para">
<ul class="simplelist">
<li class="member"><span class="function"><a href="sybase_connect.html" class="function" rel="rdfs-seeAlso">sybase_connect()</a> - Opens a Sybase server connection</span></li>
</ul>
</p>
</div>
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