PHP代码：从数据表里塞选出重复的数据

2024-05-04 23:03:56

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<?php
mysql_connect('localhost','',''); //添加相应的mysql主机名，用户名，密码
mysql_select_db(''); //添加相应的mysql的数据库名
$sql = "select * from ''"; //添加相应的数据表的名字
$query = mysql_query($sql);
$i = 0;
while($result = mysql_fetch_array($query))
{

$sqlstr = "select * from smsorderinfo where ordermobile = '".$result['ordermobile']."' and itemkind = '".$result['itemkind']."'";
//echo "ordermobile = ".$result['ordermobile']." itemkind = ".$result['itemkind']."/n";
//echo "sqlstr = ".$sqlstr."/n";

if ($query1 = mysql_query($sqlstr))
{
//echo "成功/n";
while ($result1 = mysql_fetch_array($query1))
{
if ($result['id'] != $result1['id'])
{
echo "发现重复: id1 = ".$result['id']." id2 = ".$result1['id']."/n";
//else echo "######################: id1 = ".$result['id']." id2 = ".$result1['id']."/n";
$sqlstr2 = "delete from `smsorderinfo` where id = '".$result['id']."'";
//echo $sqlstr2;
if(mysql_query($sqlstr2))
{
echo "删除成功!/n";
}
else
echo "删除失败!";
}
}
}
//$arry[] = $result['ordermobile'].$result['itemkind'];
//echo $result['zuhe']."<br>";
$i++;
}
echo $i;
?>

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