function.fbsql-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 a persistent connection to a FrontBase Server</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.fbsql-password.html">fbsql_password</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.fbsql-query.html">fbsql_query</a></div> <div class="up"><a href="ref.fbsql.html">FrontBase Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.fbsql-pconnect" class="refentry"> <div class="refnamediv"> <h1 class="refname">fbsql_pconnect</h1> <p class="verinfo">(PHP 4 >= 4.0.6, PHP 5)</p><p class="refpurpose"><span class="refname">fbsql_pconnect</span> — <span class="dc-title">Open a persistent connection to a FrontBase Server</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>fbsql_pconnect</b></b></span> ([ <span class="methodparam"><span class="type">string</span> <tt class="parameter">$hostname</tt></span> [, <span class="methodparam"><span class="type">string</span> <tt class="parameter">$username</tt></span> [, <span class="methodparam"><span class="type">string</span> <tt class="parameter">$password</tt></span> ]]] )</div> <p class="para rdfs-comment"> Establishes a persistent connection to a FrontBase server. </p> <p class="para"> To set the server port number, use <a href="function.fbsql-select-db.html" class="function">fbsql_select_db()</a>. </p> <p class="para"> <b>fbsql_pconnect()</b> acts very much like <a href="function.fbsql-connect.html" class="function">fbsql_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. </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">hostname</tt></i></span> <dd> <p class="para"> The server host name. Defaults to <i>localhost</i>. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">username</tt></i></span> <dd> <p class="para"> The user name for the connection. Defaults to <i>_SYSTEM</i>. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">password</tt></i></span> <dd> <p class="para"> The password for the connection. Defaults to the empty string. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns a positive FrontBase persistent link identifier on success, or <b><tt>FALSE</tt></b> on error. </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.fbsql-connect.html" class="function" rel="rdfs-seeAlso">fbsql_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.fbsql-password.html">fbsql_password</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.fbsql-query.html">fbsql_query</a></div> <div class="up"><a href="ref.fbsql.html">FrontBase 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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