function.sybase-pconnect.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Open persistent Sybase connection</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div 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"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">resource</span> <span class="methodname"><b><b>sybase_pconnect</b></b></span> ([ <span class="methodparam"><span class="type">string</span> <tt class="parameter">$servername</tt></span> [, <span class="methodparam"><span class="type">string</span> <tt class="parameter">$username</tt></span> [, <span class="methodparam"><span class="type">string</span> <tt class="parameter">$password</tt></span> [, <span class="methodparam"><span class="type">string</span> <tt class="parameter">$charset</tt></span> [, <span class="methodparam"><span class="type">string</span> <tt class="parameter">$appname</tt></span> ]]]]] )</div> <p class="para rdfs-comment"> <b>sybase_pconnect()</b> acts very much like <a href="function.sybase-connect.html" class="function">sybase_connect()</a> 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 (<a href="function.sybase-close.html" class="function">sybase_close()</a> will not close links established by <b>sybase_pconnect()</b>). </p> <p class="para"> This type of links is therefore called 'persistent'. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">servername</tt></i></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"><i><tt class="parameter">username</tt></i></span> <dd> <p class="para"> Sybase user name </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">password</tt></i></span> <dd> <p class="para"> Password associated with <i><tt class="parameter">username</tt></i>. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">charset</tt></i></span> <dd> <p class="para"> Specifies the charset for the connection </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">appname</tt></i></span> <dd> <p class="para"> </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns a positive Sybase persistent link identifier on success, or <b><tt>FALSE</tt></b> on error. </p> </div> <div class="refsect1 changelog"> <h3 class="title">ChangeLog</h3> <p class="para"> <table class="informaltable"> <colgroup> <thead valign="middle"> <tr valign="middle"> <th colspan="1">Version</th> <th colspan="1">Description</th> </tr> </thead> <tbody valign="middle" class="tbody"> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">4.0.2</td> <td colspan="1" rowspan="1" align="left"> The <i><tt class="parameter">charset</tt></i> parameter was added. </td> </tr> </tbody> </colgroup> </table> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.sybase-connect.html" class="function" rel="rdfs-seeAlso">sybase_connect()</a></li> </ul> </p> </div></div><hr /><div 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>⌨️ 快捷键说明
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