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>pg_fetch_all_columns</H1
><DIV
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><A
NAME="AEN185079"
></A
><P
>    (PHP 5 &#62;= 5.1.0RC1)</P
>pg_fetch_all_columns&nbsp;--&nbsp;Fetches all rows in a particular result column as an array</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN185082"
></A
><H2
>说明</H2
>array <B
CLASS="methodname"
>pg_fetch_all_columns</B
> ( resource result [, int column] )<BR
></BR
><P
>&#13;   <B
CLASS="function"
>pg_fetch_all_columns()</B
> returns an array that
   contains all rows (records) in a particular column of the result resource.
  </P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>注意: </B
>本函数对
PHP <TT
CLASS="constant"
><B
>NULL</B
></TT
> 值设定 NULL 字段。</P
></BLOCKQUOTE
></DIV
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN185098"
></A
><H2
>参数</H2
><P
>&#13;   <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>result</CODE
></DT
><DD
><P
>&#13;       PostgreSQL query result resource, returned by <A
HREF="function.pg-query.html"
><B
CLASS="function"
>pg_query()</B
></A
>,
       <A
HREF="function.pg-query-params.html"
><B
CLASS="function"
>pg_query_params()</B
></A
> or <A
HREF="function.pg-execute.html"
><B
CLASS="function"
>pg_execute()</B
></A
>
       (among others).
      </P
></DD
><DT
><CODE
CLASS="parameter"
>column</CODE
></DT
><DD
><P
>&#13;       Column number, zero-based, to be retrieved from the result resource.  Defaults
       to the first column if not specified.
      </P
></DD
></DL
></DIV
>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN185115"
></A
><H2
>返回值</H2
><P
>&#13;   An <A
HREF="language.types.array.html"
><B
CLASS="type"
>array</B
></A
> with all values in the result column.
  </P
><P
>&#13;   <TT
CLASS="constant"
><B
>FALSE</B
></TT
> is returned if <CODE
CLASS="parameter"
>column</CODE
> is larger than the number 
   of columns in the result, or on any other error.
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN185122"
></A
><H2
>范例</H2
><P
>&#13;   <TABLE
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><A
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></A
><P
><B
>例 1. <B
CLASS="function"
>pg_fetch_all_columns()</B
> example</B
></P
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><code><font color="#000000">
<font color="#0000BB">&lt;?php <br />$conn </font><font color="#007700">= </font><font color="#0000BB">pg_pconnect</font><font color="#007700">(</font><font color="#DD0000">"dbname=publisher"</font><font color="#007700">);<br />if (!</font><font color="#0000BB">$conn</font><font color="#007700">) {<br />&nbsp;&nbsp;echo </font><font color="#DD0000">"An error occured.\n"</font><font color="#007700">;<br />&nbsp;&nbsp;exit;<br />}<br /><br /></font><font color="#0000BB">$result </font><font color="#007700">= </font><font color="#0000BB">pg_query</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">, </font><font color="#DD0000">"SELECT title, name, address FROM authors"</font><font color="#007700">);<br />if (!</font><font color="#0000BB">$result</font><font color="#007700">) {<br />&nbsp;&nbsp;echo </font><font color="#DD0000">"An error occured.\n"</font><font color="#007700">;<br />&nbsp;&nbsp;exit;<br />}<br /><br /></font><font color="#FF8000">// Get an array of all author names<br /></font><font color="#0000BB">$arr </font><font color="#007700">= </font><font color="#0000BB">pg_fetch_all_columns</font><font color="#007700">(</font><font color="#0000BB">$result</font><font color="#007700">, </font><font color="#0000BB">1</font><font color="#007700">);<br /><br /></font><font color="#0000BB">var_dump</font><font color="#007700">(</font><font color="#0000BB">$arr</font><font color="#007700">);<br /><br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN185129"
></A
><H2
>参见</H2
><P
>&#13;   <P
></P
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><A
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>pg_fetch_all()</B
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