插入数据库值显示空白
问题描述:
我目前正在做一个注册页面,我用html编码了布局,并且我从html输入(<input
) 获得了值并插入到数据库中。它没有成功地inputed到数据库中,但是当我从“选择dbo.user *”的值显示空白插入数据库值显示空白
答
<?php
$conn = mysql_connect("localhost", "mysql_user", "mysql_password");
if (!$conn) {
echo "Unable to connect to DB: " . mysql_error();
exit;
}
if (!mysql_select_db("mydbname")) {
echo "Unable to select mydbname: " . mysql_error();
exit;
}
$sql = "SELECT id as userid, fullname, userstatus
FROM sometable
WHERE userstatus = 1";
$result = mysql_query($sql);
if (!$result) {
echo "Could not successfully run query ($sql) from DB: " . mysql_error();
exit;
}
if (mysql_num_rows($result) == 0) {
echo "No rows found, nothing to print so am exiting";
exit;
}
// While a row of data exists, put that row in $row as an associative array
// Note: If you're expecting just one row, no need to use a loop
// Note: If you put extract($row); inside the following loop, you'll
// then create $userid, $fullname, and $userstatus
while ($row = mysql_fetch_assoc($result)) {
echo $row["userid"];
echo $row["fullname"];
echo $row["userstatus"];
}
mysql_free_result($result);
?>
来源:http://au2.php.net/manual/en/function.mysql-fetch-assoc.php
确保编辑您的帖子中添加代码使用读取/从数据库写入数据。最好显示内联字符串常量值,而不是从未定义的控件读取。 – 2014-10-04 06:58:40