<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >fbsql_num_rows</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="FrontBase Functions" HREF="ref.fbsql.html"><LINK REL="PREVIOUS" TITLE="fbsql_num_fields" HREF="function.fbsql-num-fields.html"><LINK REL="NEXT" TITLE="fbsql_password" HREF="function.fbsql-password.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.fbsql-num-fields.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.fbsql-password.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.fbsql-num-rows" ></A >fbsql_num_rows</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN60113" ></A ><P > (PHP 4 >= 4.0.6, PHP 5)</P >fbsql_num_rows -- Get number of rows in result</DIV ><DIV CLASS="refsect1" ><A NAME="AEN60116" ></A ><H2 >说明</H2 >int <B CLASS="methodname" >fbsql_num_rows</B > ( resource result )<BR ></BR ><P > Gets the number of rows in the given <CODE CLASS="parameter" >result</CODE > set. </P ><P > This function is only valid for SELECT statements. To retrieve the number of rows returned from a INSERT, UPDATE or DELETE query, use <A HREF="function.fbsql-affected-rows.html" ><B CLASS="function" >fbsql_affected_rows()</B ></A >. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN60128" ></A ><H2 >参数</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" > result</CODE ></DT ><DD ><P >A result identifier returned by <A HREF="function.fbsql-query.html" ><B CLASS="function" >fbsql_query()</B ></A > or <A HREF="function.fbsql-db-query.html" ><B CLASS="function" >fbsql_db_query()</B ></A >.</P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN60139" ></A ><H2 >返回值</H2 ><P > Returns the number of rows returned by the last SELECT statement. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN60142" ></A ><H2 >范例</H2 ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN60145" ></A ><P ><B >例 1. <B CLASS="function" >fbsql_num_rows()</B > example</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br /><br />$link </font><font color="#007700">= </font><font color="#0000BB">fbsql_connect</font><font color="#007700">(</font><font color="#DD0000">"localhost"</font><font color="#007700">, </font><font color="#DD0000">"username"</font><font color="#007700">, </font><font color="#DD0000">"password"</font><font color="#007700">);<br /></font><font color="#0000BB">fbsql_select_db</font><font color="#007700">(</font><font color="#DD0000">"database"</font><font color="#007700">, </font><font color="#0000BB">$link</font><font color="#007700">);<br /><br /></font><font color="#0000BB">$result </font><font color="#007700">= </font><font color="#0000BB">fbsql_query</font><font color="#007700">(</font><font color="#DD0000">"SELECT * FROM table1;"</font><font color="#007700">, </font><font color="#0000BB">$link</font><font color="#007700">);<br /></font><font color="#0000BB">$num_rows </font><font color="#007700">= </font><font color="#0000BB">fbsql_num_rows</font><font color="#007700">(</font><font color="#0000BB">$result</font><font color="#007700">);<br /><br />echo </font><font color="#DD0000">"$num_rows Rows</font><font color="#007700">\n</font><font color="#DD0000">"</font><font color="#007700">;<br /><br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN60149" ></A ><H2 >参见</H2 ><P > <P ></P ><TABLE BORDER="0" ><TBODY ><TR ><TD ><A HREF="function.fbsql-affected-rows.html" ><B CLASS="function" >fbsql_affected_rows()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.fbsql-connect.html" ><B CLASS="function" >fbsql_connect()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.fbsql-select-db.html" ><B CLASS="function" >fbsql_select_db()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.fbsql-query.html" ><B CLASS="function" >fbsql_query()</B ></A ></TD ></TR ></TBODY ></TABLE ><P ></P > </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.fbsql-num-fields.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.fbsql-password.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >fbsql_num_fields</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.fbsql.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >fbsql_password</TD ></TR ></TABLE ></DIV ></BODY ></HTML >
