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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>ÎÞ±êÌâÎĵµ</title>
</head>

<body>
<?php
$connect=mysql_connect("localhost","root","root");
$dbname="studyphp";
mysql_select_db($dbname,$connect)
or die("ûÓÐÑ¡ÔñÊý¾Ý¿â $dbname:".mysql_error());
$res=mysql_query("select * from price",$connect);
echo "price±íÖдæÔÚµÄ×Ö¶ÎÓÐ:<br>";
echo mysql_field_name($res,0)."<br>";
echo mysql_field_name($res,1)."<br>";
echo mysql_field_name($res,2);
?>
</body>
</html>
ÉÏÃæÊÇPHPÖÐµÄ mysql_field_nameº¯ÊýµÄÓ¦Ó㬵«ÊÇÎҵĵçÄÔÔËÐгöÀ´µÄ½á¹ûÈ´ÊÇ£º
Warning: Unknown: failed to open stream: Invalid argument in Unknown on line 0

Fatal error: Unknown: Failed opening required 'D:/www/mysql_list_fields鍑½æ暟鐨勫簲鐢?php' (include_path='.;C:\php5\pear') in Unknown on line 0


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PHP code
<?php
if(!file_exists("ceshi.txt")){
fopen("ceshi. ......
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