php-doc-en/reference/sybase/functions/sybase-pconnect.xml
2003-07-12 16:25:58 +00:00

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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.3 $ -->
<!-- splitted from ./en/functions/sybase.xml, last change in rev 1.2 -->
<refentry id="function.sybase-pconnect">
<refnamediv>
<refname>sybase_pconnect</refname>
<refpurpose>Open persistent Sybase connection</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>resource</type><methodname>sybase_pconnect</methodname>
<methodparam choice="opt"><type>string</type><parameter>servername</parameter></methodparam>
<methodparam choice="opt"><type>string</type><parameter>username</parameter></methodparam>
<methodparam choice="opt"><type>string</type><parameter>password</parameter></methodparam>
<methodparam choice="opt"><type>string</type><parameter>charset</parameter></methodparam>
<methodparam choice="opt"><type>string</type><parameter>appname</parameter></methodparam>
</methodsynopsis>
<para>
Returns a positive Sybase persistent link identifier on success,
or &false; on error.
</para>
<para>
<function>sybase_pconnect</function> acts very much like
<function>sybase_connect</function> with two major differences.
</para>
<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.
</para>
<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 (<function>sybase_close</function> will not
close links established by <function>sybase_pconnect()</function>).
</para>
<para>
This type of links is therefore called 'persistent'.
</para>
<para>
See also <function>sybase_connect</function>.
</para>
</refsect1>
</refentry>
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