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<HTML
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>mysql_connect</TITLE
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><H1
><A
NAME="function.mysql-connect"
>mysql_connect</A
></H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN24005"
></A
><P
>    (PHP3 , PHP4 )</P
>mysql_connect&nbsp;--&nbsp;Open a connection to a MySQL Server</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN24008"
></A
><H2
>Description</H2
><DIV
CLASS="funcsynopsis"
><A
NAME="AEN24010"
></A
><P
></P
><P
><CODE
><CODE
CLASS="FUNCDEF"
>int <B
CLASS="function"
>mysql_connect</B
></CODE
> ([string 
       hostname
 	[:port]
 	[:/path/to/socket] [, string 
       username [, string 
       password]]])</CODE
></P
><P
></P
></DIV
><P
> 
     Returns a positive MySQL link identifier on success, or an error
     message on failure.
    </P
><P
>&#13;     <B
CLASS="function"
>mysql_connect()</B
> establishes a connection
     to a MySQL server.  The following defaults are assumed for
     missing optional parameters: <TT
CLASS="parameter"
><I
>host:port</I
></TT
> =
     'localhost:3306', <TT
CLASS="parameter"
><I
>username</I
></TT
> = name of the
     user that owns the server process and 
     <TT
CLASS="parameter"
><I
>password</I
></TT
> = empty password.
    </P
><P
>&#13;     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" was added in PHP 3.0B4.
      </P
><P
>&#13;       Support for ":/path/to/socket" was added in
       PHP 3.0.10.
      </P
><P
>&#13;      You can suppress the error message on failure by prepending '@'
      to the function name.
      </P
></BLOCKQUOTE
></DIV
>
    </P
><P
>&#13;     If a second call is made to <B
CLASS="function"
>mysql_connect()</B
>
     with the same arguments, no new link will be established, but
     instead, the link identifier of the already opened link will be
     returned.
    </P
><P
>&#13;     The link to the server will be closed as soon as the execution of
     the script ends, unless it's closed earlier by explicitly calling
     <A
HREF="function.mysql-close.html"
><B
CLASS="function"
>mysql_close()</B
></A
>.
    </P
><TABLE
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CLASS="EXAMPLE"
><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN24040"
></A
><P
><B
>Example 1. MySQL connect example</B
></P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="programlisting"
>&#13;&#60;?php
    $link = mysql_connect ("kraemer", "marliesle", "secret")
        or die ("Could not connect");
    print ("Connected successfully");
    mysql_close ($link);
?&#62;
     </PRE
></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
><P
> See also
     <A
HREF="function.mysql-pconnect.html"
><B
CLASS="function"
>mysql_pconnect()</B
></A
>, and
     <A
HREF="function.mysql-close.html"
><B
CLASS="function"
>mysql_close()</B
></A
>.
    </P
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