<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >pg_select</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REL="HOME" TITLE="PHP 手册" HREF="index.html"><LINK REL="UP" TITLE="PostgreSQL 数据库函数" HREF="ref.pgsql.html"><LINK REL="PREVIOUS" TITLE="pg_result_status" HREF="function.pg-result-status.html"><LINK REL="NEXT" TITLE="pg_send_execute" HREF="function.pg-send-execute.html"><META HTTP-EQUIV="Content-type" CONTENT="text/html; charset=UTF-8"></HEAD ><BODY CLASS="refentry" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >PHP 手册</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="function.pg-result-status.html" ACCESSKEY="P" >上一页</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.pg-send-execute.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.pg-select" ></A >pg_select</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN186818" ></A ><P > (PHP 4 >= 4.3.0, PHP 5)</P >pg_select -- 选择记录 </DIV ><DIV CLASS="refsect1" ><A NAME="AEN186821" ></A ><H2 >说明</H2 >array <B CLASS="methodname" >pg_select</B > ( resource connection, string table_name, array assoc_array [, int options] )<BR ></BR ><P > <B CLASS="function" >pg_select()</B > 根据 <TT CLASS="literal" >assoc_array</TT > 数组中的 <TT CLASS="literal" >field=>value</TT > 值来选择记录。成功的查询返回和 <TT CLASS="literal" >assoc_array</TT > 指定的条件相匹配的包括记录和字段的数组。如果指定了 <TT CLASS="literal" >options</TT >,<A HREF="function.pg-convert.html" ><B CLASS="function" >pg_convert()</B ></A > 会按照指定选项作用于 <TT CLASS="literal" >assoc_array</TT > 之上。 </P ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN186847" ></A ><P ><B >例 1. pg_select</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php <br /> $db </font><font color="#007700">= </font><font color="#0000BB">pg_connect </font><font color="#007700">(</font><font color="#DD0000">'dbname=foo'</font><font color="#007700">);<br /> </font><font color="#FF8000">// This is safe, since $_POST is converted automatically<br /> </font><font color="#0000BB">$rec </font><font color="#007700">= </font><font color="#0000BB">pg_select</font><font color="#007700">(</font><font color="#0000BB">$db</font><font color="#007700">, </font><font color="#DD0000">'post_log'</font><font color="#007700">, </font><font color="#0000BB">$_POST</font><font color="#007700">);<br /> if (</font><font color="#0000BB">$rec</font><font color="#007700">) {<br /> echo </font><font color="#DD0000">"Records selected\n"</font><font color="#007700">;<br /> </font><font color="#0000BB">var_dump</font><font color="#007700">(</font><font color="#0000BB">$rec</font><font color="#007700">);<br /> }<br /> else {<br /> echo </font><font color="#DD0000">"User must have sent wrong inputs\n"</font><font color="#007700">;<br /> }<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ><DIV CLASS="warning" ><P ></P ><TABLE CLASS="warning" BORDER="1" WIDTH="100%" ><TR ><TD ALIGN="CENTER" ><B >警告</B ></TD ></TR ><TR ><TD ALIGN="LEFT" ><P >本函数是<SPAN CLASS="emphasis" ><I CLASS="emphasis" >实验性</I ></SPAN >的。本函数的行为,包括函数名称以及其它任何关于本函数的文档可能会在没有通知的情况下随 PHP 以后的发布而改变。使用本函数风险自担。</P ></TD ></TR ></TABLE ></DIV ><P > 参见 <A HREF="function.pg-convert.html" ><B CLASS="function" >pg_convert()</B ></A >。 </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="function.pg-result-status.html" ACCESSKEY="P" >上一页</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >起始页</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="function.pg-send-execute.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >pg_result_status</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.pgsql.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >pg_send_execute</TD ></TR ></TABLE ></DIV ></BODY ></HTML >