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<h1 class="refname">sybase_pconnect</h1>
<p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">sybase_pconnect</span> — <span class="dc-title">Open persistent Sybase connection</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.sybase-pconnect-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">resource</span> <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>
]]]]] )</div>
<p class="para rdfs-comment">
<span class="function"><strong>sybase_pconnect()</strong></span> acts very much like
<span class="function"><a href="function.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'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="function.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 'persistent'.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.sybase-pconnect-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">servername</code></em></span>
<dd>
<p class="para">
The servername argument has to be a valid servername that is defined
in the 'interfaces' file.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">username</code></em></span>
<dd>
<p class="para">
Sybase user name
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">password</code></em></span>
<dd>
<p class="para">
Password associated with <em><code class="parameter">username</code></em>.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">charset</code></em></span>
<dd>
<p class="para">
Specifies the charset for the connection
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">appname</code></em></span>
<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>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.sybase-pconnect-returnvalues">
<h3 class="title">Return Values</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 changelog" id="refsect1-function.sybase-pconnect-changelog">
<h3 class="title">Changelog</h3>
<p class="para">
<table class="doctable informaltable">
<thead>
<tr>
<th>Version</th>
<th>Description</th>
</tr>
</thead>
<tbody class="tbody">
<tr>
<td>4.2.0</td>
<td>
The <em><code class="parameter">appname</code></em> parameter was added.
</td>
</tr>
<tr>
<td>4.0.2</td>
<td>
The <em><code class="parameter">charset</code></em> parameter was added.
</td>
</tr>
</tbody>
</table>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.sybase-pconnect-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.sybase-connect.html" class="function" rel="rdfs-seeAlso">sybase_connect()</a> - Opens a Sybase server connection</span></li>
</ul>
</p>
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