📄 function.ingres-error.html
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Gets a meaningful error message for the last error generated</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.ingres-errno.html">ingres_errno</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.ingres-errsqlstate.html">ingres_errsqlstate</a></div> <div class="up"><a href="ref.ingres.html">Ingres II Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.ingres-error" class="refentry"> <div class="refnamediv"> <h1 class="refname">ingres_error</h1> <p class="verinfo">(PECL ingres:1.1-1.4.3)</p><p class="refpurpose"><span class="refname">ingres_error</span> — <span class="dc-title">Gets a meaningful error message for the last error generated</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">string</span> <span class="methodname"><b><b>ingres_error</b></b></span> ([ <span class="methodparam"><span class="type">resource</span> <tt class="parameter">$link</tt></span> ] )</div> <p class="para rdfs-comment"> Returns a string containing the last error, or NULL if no error has occurred. </p> <p class="para"> If a <i><tt class="parameter">link</tt></i> resource is passed to <b>ingres_error()</b> it returns the last error recorded for the link. If no link is passed then <b>ingres_error()</b> returns the last error reported using the default link. </p> <p class="para"> The function, <b>ingres_error()</b>, should always be called after executing any database query. Calling another function before <b>ingres_error()</b> is called will reset or change any error message from the last Ingres function call. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">link</tt></i></span> <dd> <p class="para"> The connection link identifier. If not specified, the last opened link is used. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns a string containing the last error, or NULL if no error has occurred. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 <b>ingres_error()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />ingres_connect</span><span style="color: #007700">(</span><span style="color: #0000BB">$database</span><span style="color: #007700">, </span><span style="color: #0000BB">$user</span><span style="color: #007700">, </span><span style="color: #0000BB">$password</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">ingres_query</span><span style="color: #007700">(</span><span style="color: #DD0000">"select * from table"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$error_text </span><span style="color: #007700">= </span><span style="color: #0000BB">ingres_error</span><span style="color: #007700">();<br /><br />if (!</span><span style="color: #0000BB">is_null</span><span style="color: #007700">(</span><span style="color: #0000BB">$error_text</span><span style="color: #007700">)) {<br /> echo </span><span style="color: #DD0000">"An error occured - " </span><span style="color: #007700">. </span><span style="color: #0000BB">$error_text</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.ingres-errno.html" class="function" rel="rdfs-seeAlso">ingres_errno()</a></li> <li class="member"><a href="function.ingres-errsqlstate.html" class="function" rel="rdfs-seeAlso">ingres_errsqlstate()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.ingres-errno.html">ingres_errno</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.ingres-errsqlstate.html">ingres_errsqlstate</a></div> <div class="up"><a href="ref.ingres.html">Ingres II Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -