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>mysql_list_fields</H1
><DIV
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NAME="AEN136030"
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><P
>    (PHP 3, PHP 4, PHP 5)</P
>mysql_list_fields&nbsp;--&nbsp;列出 MySQL 结果中的字段</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN136033"
></A
><H2
>说明</H2
>resource <B
CLASS="methodname"
>mysql_list_fields</B
> ( string database_name, string table_name [, resource link_identifier] )<BR
></BR
><P
>&#13;     <B
CLASS="function"
>mysql_list_fields()</B
>
     取得给定表名的信息。参数是数据库名和表名。返回一个结果指针，可以用于
     <A
HREF="function.mysql-field-flags.html"
><B
CLASS="function"
>mysql_field_flags()</B
></A
>，<A
HREF="function.mysql-field-len.html"
><B
CLASS="function"
>mysql_field_len()</B
></A
>，<A
HREF="function.mysql-field-name.html"
><B
CLASS="function"
>mysql_field_name()</B
></A
> 和
     <A
HREF="function.mysql-field-type.html"
><B
CLASS="function"
>mysql_field_type()</B
></A
>。
    </P
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><P
><B
>例 1. <B
CLASS="function"
>mysql_list_fields()</B
> 例子</B
></P
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$link </font><font color="#007700">= </font><font color="#0000BB">mysql_connect</font><font color="#007700">(</font><font color="#DD0000">'localhost'</font><font color="#007700">, </font><font color="#DD0000">'mysql_user'</font><font color="#007700">, </font><font color="#DD0000">'mysql_password'</font><font color="#007700">);<br /><br /></font><font color="#0000BB">$fields </font><font color="#007700">= </font><font color="#0000BB">mysql_list_fields</font><font color="#007700">(</font><font color="#DD0000">"database1"</font><font color="#007700">, </font><font color="#DD0000">"table1"</font><font color="#007700">, </font><font color="#0000BB">$link</font><font color="#007700">);<br /></font><font color="#0000BB">$columns </font><font color="#007700">= </font><font color="#0000BB">mysql_num_fields</font><font color="#007700">(</font><font color="#0000BB">$fields</font><font color="#007700">);<br /><br />for (</font><font color="#0000BB">$i </font><font color="#007700">= </font><font color="#0000BB">0</font><font color="#007700">; </font><font color="#0000BB">$i </font><font color="#007700">&lt; </font><font color="#0000BB">$columns</font><font color="#007700">; </font><font color="#0000BB">$i</font><font color="#007700">++) {<br />&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#0000BB">mysql_field_name</font><font color="#007700">(</font><font color="#0000BB">$fields</font><font color="#007700">, </font><font color="#0000BB">$i</font><font color="#007700">) . </font><font color="#DD0000">"\n"</font><font color="#007700">;<br />}</font>
</font>
</code></TD
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><P
>&#13;       以上例子将产生如下输出：
      </P
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><TR
><TD
><PRE
CLASS="screen"
>field1
field2
field3
...</PRE
></TD
></TR
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></DIV
></TD
></TR
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>
    </P
><P
>&#13;     为向下兼容仍然可以使用
     <B
CLASS="function"
>mysql_listfields()</B
>，但反对这样做。
    </P
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><B
>注意: </B
>
      <B
CLASS="function"
>mysql_list_fields()</B
> 函数已过时。最好用
      <A
HREF="function.mysql-query.html"
><B
CLASS="function"
>mysql_query()</B
></A
> 来发出一条
      <TT
CLASS="literal"
>SHOW COLUMNS FROM table [LIKE 'name']</TT
>
      的 SQL 语句来代替。
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