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$sql = 'SELECT users.NAME, company.name
FROM users
LEFT JOIN (user_company_access, company) ON (users.USER_ID=user_company_access.company_id AND user_company_access.company_id=company.company_id)
WHERE users.USER_ID="1" AND company.company_id=users.USER_ID';
$retval = mysql_query( $sql, $conn );
if(! $retval )
{
die('Could not get data: ' . mysql_error());
}
while($row = mysql_fetch_array($retval, MYSQL_ASSOC))
{
echo "USER ID :"+$row[0]+" <br> ";
}
我得到:
Notice: Undefined offset: 0 in C:\xampp\htdocs\index.php on line 23
0
Notice: Undefined offset: 0 in C:\xampp\htdocs\index.php on line 23
0Fetched data successfully
有没有办法直接拉取数据？我也尝试过 $row['users.NAME'] 之类的操作，但仍然失败。