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>ifx_pconnect</H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN100457"
></A
><P
> (PHP 3 >= 3.0.3, PHP 4, PHP 5)</P
>ifx_pconnect -- Open persistent Informix connection</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN100460"
></A
><H2
>说明</H2
>resource <B
CLASS="methodname"
>ifx_pconnect</B
> ( [string database [, string userid [, string password]]] )<BR
></BR
><P
> <B
CLASS="function"
>ifx_pconnect()</B
> acts very much like
<A
HREF="function.ifx-connect.html"
><B
CLASS="function"
>ifx_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.ifx-close.html"
><B
CLASS="function"
>ifx_close()</B
></A
> will not
close links established by <B
CLASS="function"
>ifx_pconnect()</B
>).
</P
><P
> This type of links is therefore called 'persistent'.
</P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN100482"
></A
><H2
>参数</H2
><P
> All of the arguments are optional, and if they're missing, defaults are
taken from values supplied in <TT
CLASS="filename"
>php.ini</TT
> (ifx.default_host for the host
(Informix libraries will use <CODE
CLASS="envar"
>INFORMIXSERVER</CODE
> environment
value if not defined), ifx.default_user for user, ifx.default_password for
the password (none if not defined).
</P
><P
> <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>database</CODE
></DT
><DD
><P
> The database name, as a string.
</P
></DD
><DT
><CODE
CLASS="parameter"
>userid</CODE
></DT
><DD
><P
> The username, as a string.
</P
></DD
><DT
><CODE
CLASS="parameter"
>password</CODE
></DT
><DD
><P
> The password, as a string.
</P
></DD
></DL
></DIV
>
</P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN100504"
></A
><H2
>返回值</H2
><P
> Returns: valid Informix persistent link identifier on success, or <TT
CLASS="constant"
><B
>FALSE</B
></TT
>
on errors.
</P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN100508"
></A
><H2
>参见</H2
><P
> <P
></P
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><TD
><A
HREF="function.ifx-connect.html"
><B
CLASS="function"
>ifx_connect()</B
></A
></TD
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><P
></P
>
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