function.php-pg_fetch_row.htm

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<title>函数:pg_Fetch_Row()</title>
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<td valign=middle nowrap><font color=e06060 size=+2><b>函数:pg_Fetch_Row()</b></font></td>
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<div align=right><a href="group.php-42.htm" alt="group.php?42">PostgreSQL 数据库函数库</a></div><br><h1><font color=0000bb>pg_Fetch_Row</font></h1><p>
返回单列的各字段。<p>
<font color=ff8000>语法:</font> <b>array pg_fetch_row(int result, int row);</b><p>
<font color=ff8000>返回值:</font> 数组<p>
<font color=ff8000>函数种类:</font> 数据库功能<p>
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<tr><td align=left><font color=ff8000>内容说明</font></td></tr></table><p>本函数用来将查询结果 result 之单列拆到数组变量中。数组的索引是数字索引，第一个的索引值是 0。若 result 没有资料，则返回 false 值。参数 row 表列数。<p>
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<tr><td align=left><font color=ff8000>使用范例</font></td></tr></table><p><font color="#000000">
<font color="#0000BB">&lt;?php&nbsp;<br>$conn&nbsp;</font><font color="#007700">=&nbsp;</font><font color="#0000BB">pg_pconnect</font><font color="#007700">(</font><font color="#DD0000">""</font><font color="#007700">,</font><font color="#DD0000">""</font><font color="#007700">,</font><font color="#DD0000">""</font><font color="#007700">,</font><font color="#DD0000">""</font><font color="#007700">,</font><font color="#DD0000">"publisher"</font><font color="#007700">);<br>if&nbsp;(!</font><font color="#0000BB">$conn</font><font color="#007700">)&nbsp;{<br>&nbsp;&nbsp;echo&nbsp;</font><font color="#DD0000">"连接失败\n"</font><font color="#007700">;<br>&nbsp;&nbsp;exit;<br>}<br></font><font color="#0000BB">$result&nbsp;</font><font color="#007700">=&nbsp;</font><font color="#0000BB">pg_Exec</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">,&nbsp;</font><font color="#DD0000">"SELECT&nbsp;*&nbsp;FROM&nbsp;authors"</font><font color="#007700">);<br>if&nbsp;(!</font><font color="#0000BB">$result</font><font color="#007700">)&nbsp;{<br>&nbsp;&nbsp;echo&nbsp;</font><font color="#DD0000">"查询失败\n"</font><font color="#007700">;<br>&nbsp;&nbsp;exit;<br>}<br></font><font color="#0000BB">$row&nbsp;</font><font color="#007700">=&nbsp;</font><font color="#0000BB">pg_fetch_row</font><font color="#007700">(</font><font color="#0000BB">$result</font><font color="#007700">,&nbsp;</font><font color="#0000BB">0</font><font color="#007700">);<br>echo&nbsp;</font><font color="#0000BB">$row</font><font color="#007700">[</font><font color="#0000BB">0</font><font color="#007700">]&nbsp;.&nbsp;</font><font color="#DD0000">"&nbsp;&lt;-&nbsp;row\n"</font><font color="#007700">;<br><br></font><font color="#0000BB">$row&nbsp;</font><font color="#007700">=&nbsp;</font><font color="#0000BB">pg_fetch_row</font><font color="#007700">(</font><font color="#0000BB">$result</font><font color="#007700">,&nbsp;</font><font color="#0000BB">1</font><font color="#007700">);<br>echo&nbsp;</font><font color="#0000BB">$row</font><font color="#007700">[</font><font color="#0000BB">0</font><font color="#007700">]&nbsp;.&nbsp;</font><font color="#DD0000">"&nbsp;&lt;-&nbsp;row\n"</font><font color="#007700">;<br><br></font><font color="#0000BB">$row&nbsp;</font><font color="#007700">=&nbsp;</font><font color="#0000BB">pg_fetch_row</font><font color="#007700">(</font><font color="#0000BB">$result</font><font color="#007700">,&nbsp;</font><font color="#0000BB">2</font><font color="#007700">);<br>echo&nbsp;</font><font color="#0000BB">$row</font><font color="#007700">[</font><font color="#0000BB">1</font><font color="#007700">]&nbsp;.&nbsp;</font><font color="#DD0000">"&nbsp;&lt;-&nbsp;row\n"</font><font color="#007700">;<br></font><font color="#0000BB">?&gt;</font>
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<tr><td align=left><font color=ff8000>参考</font></td></tr></table><p><a href="function.php-pg_Fetch_Array.htm" alt="function.php?pg_Fetch_Array">pg_Fetch_Array()</a> &nbsp;<a href="function.php-pg_Fetch_Object.htm" alt="function.php?pg_Fetch_Object">pg_Fetch_Object()</a> &nbsp;<a href="function.php-pg_Result.htm" alt="function.php?pg_Result">pg_Result()</a> &nbsp;<p><hr size=1><br>如果你对此手册有任何问题,请到下面网址提问:&nbsp;<a href="www.web745.com">WEB开发知识库</a>&nbsp;(<a href="http://www.web745.com">www.web745.com</a>)<p>
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