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><A
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>mysql_pconnect</A
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><DIV
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></A
>mysql_pconnect --
Open a persistent connection to a MySQL Server
</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN19030"
></A
><H2
>Description</H2
><DIV
CLASS="funcsynopsis"
><P
></P
><CODE
CLASS="FUNCDEF"
>int mysql_pconnect</CODE
>(string
[<SPAN
CLASS="optional"
>hostname
[<SPAN
CLASS="optional"
>:port</SPAN
>]
[<SPAN
CLASS="optional"
>:/path/to/socket</SPAN
>]
</SPAN
>]
, string
[<SPAN
CLASS="optional"
>username</SPAN
>]
, string
[<SPAN
CLASS="optional"
>password</SPAN
>]
);<P
></P
></DIV
><P
>
Returns: A positive MySQL persistent link identifier on success,
or false on error.
</P
><P
> <B
CLASS="function"
>mysql_pconnect()</B
> establishes a connection to a
MySQL server. All of the arguments are optional, and if they're
missing, defaults are assumed ('localhost', user name of the user
that owns the server process, empty password).
</P
><P
> The hostname string can also include a port
number. eg. "hostname:port" or a path to a socket
eg. ":/path/to/socket" for the localhost.
<DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Note: </B
>
Support for ":port" wass added in 3.0B4.
</P
><P
> Support for the ":/path/to/socket" was added in
3.0.10.
</P
></BLOCKQUOTE
></DIV
>
</P
><P
> <B
CLASS="function"
>mysql_pconnect()</B
> acts very much like
<A
HREF="function.mysql-connect.html"
><B
CLASS="function"
>mysql_connect()</B
></A
> with two major differences.
</P
><P
>
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
>
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.mysql-close.html"
><B
CLASS="function"
>mysql_close()</B
></A
> will not
close links established by <B
CLASS="function"
>mysql_pconnect()</B
>).
</P
><P
>
This type of links is therefore called 'persistent'.
</P
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