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><H1
><A
NAME="function.ldap-get-option"
></A
>ldap_get_option</H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN104824"
></A
><P
>    (PHP 4 &#62;= 4.0.4, PHP 5)</P
>ldap_get_option&nbsp;--&nbsp;Get the current value for given option</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN104827"
></A
><H2
>说明</H2
>bool <B
CLASS="methodname"
>ldap_get_option</B
> ( resource link_identifier, int option, mixed &#38;retval )<BR
></BR
><P
>&#13;   Sets <CODE
CLASS="parameter"
>retval</CODE
> to the value of the specified option.
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN104843"
></A
><H2
>参数</H2
><P
>&#13;   <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>link_identifier</CODE
></DT
><DD
><P
>&#13;       An LDAP link identifier, returned by <A
HREF="function.ldap-connect.html"
><B
CLASS="function"
>ldap_connect()</B
></A
>.
      </P
></DD
><DT
><CODE
CLASS="parameter"
>option</CODE
></DT
><DD
><P
>&#13;       The parameter <CODE
CLASS="parameter"
>option</CODE
> can be one of:
       <DIV
CLASS="informaltable"
><P
></P
><A
NAME="AEN104859"
></A
><TABLE
BORDER="1"
CLASS="CALSTABLE"
><COL><COL><COL><THEAD
><TR
><TH
>Option</TH
><TH
>Type</TH
><TD
>&nbsp;</TD
></TR
></THEAD
><TBODY
><TR
><TD
><TT
CLASS="constant"
><B
>LDAP_OPT_DEREF</B
></TT
></TD
><TD
>integer</TD
><TD
>&nbsp;</TD
></TR
><TR
><TD
><TT
CLASS="constant"
><B
>LDAP_OPT_SIZELIMIT</B
></TT
></TD
><TD
>integer</TD
><TD
>&nbsp;</TD
></TR
><TR
><TD
><TT
CLASS="constant"
><B
>LDAP_OPT_TIMELIMIT</B
></TT
></TD
><TD
>integer</TD
><TD
>&nbsp;</TD
></TR
><TR
><TD
><TT
CLASS="constant"
><B
>LDAP_OPT_PROTOCOL_VERSION</B
></TT
></TD
><TD
>integer</TD
><TD
>&nbsp;</TD
></TR
><TR
><TD
><TT
CLASS="constant"
><B
>LDAP_OPT_ERROR_NUMBER</B
></TT
></TD
><TD
>integer</TD
><TD
>&nbsp;</TD
></TR
><TR
><TD
><TT
CLASS="constant"
><B
>LDAP_OPT_REFERRALS</B
></TT
></TD
><TD
>bool</TD
><TD
>&nbsp;</TD
></TR
><TR
><TD
><TT
CLASS="constant"
><B
>LDAP_OPT_RESTART</B
></TT
></TD
><TD
>bool</TD
><TD
>&nbsp;</TD
></TR
><TR
><TD
><TT
CLASS="constant"
><B
>LDAP_OPT_HOST_NAME</B
></TT
></TD
><TD
>string</TD
><TD
>&nbsp;</TD
></TR
><TR
><TD
><TT
CLASS="constant"
><B
>LDAP_OPT_ERROR_STRING</B
></TT
></TD
><TD
>string</TD
><TD
>&nbsp;</TD
></TR
><TR
><TD
><TT
CLASS="constant"
><B
>LDAP_OPT_MATCHED_DN</B
></TT
></TD
><TD
>string</TD
><TD
>&nbsp;</TD
></TR
><TR
><TD
><TT
CLASS="constant"
><B
>LDAP_OPT_SERVER_CONTROLS</B
></TT
></TD
><TD
>array</TD
><TD
>&nbsp;</TD
></TR
><TR
><TD
><TT
CLASS="constant"
><B
>LDAP_OPT_CLIENT_CONTROLS</B
></TT
></TD
><TD
>array</TD
><TD
>&nbsp;</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
>
      </P
></DD
><DT
><CODE
CLASS="parameter"
>retval</CODE
></DT
><DD
><P
>&#13;       This will be set to the option value.
      </P
></DD
></DL
></DIV
>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN104919"
></A
><H2
>返回值</H2
><P
>&#13;   如果成功则返回 <TT
CLASS="constant"
><B
>TRUE</B
></TT
>，失败则返回 <TT
CLASS="constant"
><B
>FALSE</B
></TT
>。
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN104924"
></A
><H2
>范例</H2
><P
>&#13;   <TABLE
WIDTH="100%"
BORDER="0"
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CLASS="EXAMPLE"
><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN104927"
></A
><P
><B
>例 1. Check protocol version</B
></P
><TABLE
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><TR
><TD
><code><font color="#000000">
<font color="#0000BB">&lt;?php<br /></font><font color="#FF8000">// $ds is a valid link identifier for a directory server<br /></font><font color="#007700">if (</font><font color="#0000BB">ldap_get_option</font><font color="#007700">(</font><font color="#0000BB">$ds</font><font color="#007700">, </font><font color="#0000BB">LDAP_OPT_PROTOCOL_VERSION</font><font color="#007700">, </font><font color="#0000BB">$version</font><font color="#007700">)) {<br />&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#DD0000">"Using protocol version $version</font><font color="#007700">\n</font><font color="#DD0000">"</font><font color="#007700">;<br />} else {<br />&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#DD0000">"Unable to determine protocol version\n"</font><font color="#007700">;<br />}<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN104930"
></A
><H2
>注释</H2
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>注意: </B
>
    This function is only available when using OpenLDAP 2.x.x OR Netscape
    Directory SDK x.x.
   </P
></BLOCKQUOTE
></DIV
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN104934"
></A
><H2
>参见</H2
><P
>&#13;   <P
></P
><TABLE
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><TR
><TD
><A
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><B
CLASS="function"
>ldap_set_option()</B
></A
></TD
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></P
>
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