<!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>Open persistent Sybase connection</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.sybase-num-rows.html">sybase_num_rows</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.sybase-query.html">sybase_query</a></div> <div class="up"><a href="ref.sybase.html">Sybase Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><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> — <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> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.sybase-num-rows.html">sybase_num_rows</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.sybase-query.html">sybase_query</a></div> <div class="up"><a href="ref.sybase.html">Sybase Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>