代码如下:
<html>
<body>
<?php
$conn = mssql_connect("database","user","password");
$is = mssql_select_db("Northwind",$conn);
$query = "Select * from Categories";
$queryRow = mssql_query($query,$conn);
$r = mssql_fetch_field($queryRow);
while($r = mssql_fetch_field($queryRow))
{
echo $r[0];
}
mssql_close($conn);
?>
</body>
</html>我什么地方写错了吗?为什么连接是成功的,可是数据就是显示不出呢?
请求高人指导,万分感谢.
<html>
<body>
<?php
$conn = mssql_connect("database","user","password");
$is = mssql_select_db("Northwind",$conn);
$query = "Select * from Categories";
$queryRow = mssql_query($query,$conn);
$r = mssql_fetch_field($queryRow);
while($r = mssql_fetch_field($queryRow))
{
echo $r[0];
}
mssql_close($conn);
?>
</body>
</html>我什么地方写错了吗?为什么连接是成功的,可是数据就是显示不出呢?
请求高人指导,万分感谢.
前者得到的是“列”的“信息”，而不是列的“值”
比如从w3schoo上的一段代码（原地址http://www.w3school.com.cn/php/func_mysql_fetch_field.asp）
while ($property = mysql_fetch_field($result))
{
echo "Field name: " . $property->name . "<br />";
echo "Table name: " . $property->table . "<br />";
echo "Default value: " . $property->def . "<br />";
echo "Max length: " . $property->max_length . "<br />";
echo "Not NULL: " . $property->not_null . "<br />";
echo "Primary Key: " . $property->primary_key . "<br />";
echo "Unique Key: " . $property->unique_key . "<br />";
echo "Mutliple Key: " . $property->multiple_key . "<br />";
echo "Numeric Field: " . $property->numeric . "<br />";
echo "BLOB: " . $property->blob . "<br />";
echo "Field Type: " . $property->type . "<br />";
echo "Unsigned: " . $property->unsigned . "<br />";
echo "Zero-filled: " . $property->zerofill . "<br /><br />";
}
返回的结果是：
Field name: LastName
Table name: Person
Default value:
Max length: 8
Not NULL: 0
Primary Key: 0
Unique Key: 0
Mutliple Key: 0
Numeric Field: 0
BLOB: 0
Field Type: string
Unsigned: 0
Zero-filled: 0Field name: FirstName
Table name: Person
Default value:
Max length: 7
Not NULL: 0
Primary Key: 0
Unique Key: 0
Mutliple Key: 0
Numeric Field: 0
BLOB: 0
Field Type: string
Unsigned: 0
Zero-filled: 0Field name: City
Table name: Person
。。
而不是你想得到的
$r[0]='张三'等等
//------------------------------
while($r = mssql_fetch_field($queryRow))
{
echo $r[0];
}
mssql_close($conn);
//-------------------------
?>
while($r = mssql_fetch_field($queryRow)):错了这里需要boolean值~