php-doc-en/reference/sybase/functions/sybase-pconnect.xml

<?xml version="1.0" encoding="iso-8859-1"?>
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<refentry id="function.sybase-pconnect">
 <refnamediv>
  <refname>sybase_pconnect</refname>
  <refpurpose>Open persistent Sybase connection</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <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>
   <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>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>servername</parameter></term>
     <listitem>
      <para>
       The servername argument has to be a valid servername that is defined
       in the 'interfaces' file.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>username</parameter></term>
     <listitem>
      <para>
       Sybase user name
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>password</parameter></term>
     <listitem>
      <para>
       Password associated with <parameter>username</parameter>.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>charset</parameter></term>
     <listitem>
      <para>
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>appname</parameter></term>
     <listitem>
      <para>
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns a positive Sybase persistent link identifier on success, or
   &false; on error.
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>sybase_connect</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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