<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >ingres_error</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="Ingres II Functions" HREF="ref.ingres.html"><LINK REL="PREVIOUS" TITLE="ingres_errno" HREF="function.ingres-errno.html"><LINK REL="NEXT" TITLE="ingres_errsqlstate" HREF="function.ingres-errsqlstate.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.ingres-errno.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.ingres-errsqlstate.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.ingres-error" ></A >ingres_error</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN101719" ></A ><P > (PECL)</P >ingres_error -- Gets a meaningful error message for the last error generated</DIV ><DIV CLASS="refsect1" ><A NAME="AEN101722" ></A ><H2 >Description</H2 >string <B CLASS="methodname" >ingres_error</B > ( [resource link] )<BR ></BR ><P > Returns a string containing the last error, or NULL if no error has occurred. </P ><P > If a <CODE CLASS="parameter" >link</CODE > resource is passed to <B CLASS="function" >ingres_error()</B > it returns the last error recorded for the link. If no link is passed then <B CLASS="function" >ingres_error()</B > returns the last error reported using the default link. </P ><P > The function, <B CLASS="function" >ingres_error()</B >, should always be called after executing any database query. Calling another function before <B CLASS="function" >ingres_error()</B > is called will reset or change any error message from the last Ingres function call. </P ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN101739" ></A ><P ><B >例 1. <B CLASS="function" >ingres_error()</B > example</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br />ingres_connect</font><font color="#007700">(</font><font color="#0000BB">$database</font><font color="#007700">, </font><font color="#0000BB">$user</font><font color="#007700">, </font><font color="#0000BB">$password</font><font color="#007700">);<br /><br /></font><font color="#0000BB">ingres_query</font><font color="#007700">(</font><font color="#DD0000">"select * from table"</font><font color="#007700">);<br /><br /></font><font color="#0000BB">$error_text </font><font color="#007700">= </font><font color="#0000BB">ingres_error</font><font color="#007700">();<br /><br />if ( </font><font color="#0000BB">is_null</font><font color="#007700">(</font><font color="#0000BB">$error_text</font><font color="#007700">) ) {<br /> echo </font><font color="#DD0000">"An error occured - " </font><font color="#007700">. </font><font color="#0000BB">$error_text</font><font color="#007700">;<br />}<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ><P > See also <A HREF="function.ingres-errno.html" ><B CLASS="function" >ingres_errno()</B ></A > and <A HREF="function.ingres-errsqlstate.html" ><B CLASS="function" >ingres_errsqlstate()</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.ingres-errno.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.ingres-errsqlstate.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >ingres_errno</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.ingres.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >ingres_errsqlstate</TD ></TR ></TABLE ></DIV ></BODY ></HTML >