mysql_fetch_row() 和mysql_fetch_array之间有什么区别?该如何处理
mysql_fetch_row() 和mysql_fetch_array之间有什么区别?
mysql_fetch_row() 和mysql_fetch_array之间有什么区别?
------解决方案--------------------
这两个函数,返回的都是一个数组,区别就是第一个函数返回的数组是只包含值,我们只能$row[0],$row[1],这样以数组下标来读取数据,而MySQL_fetch_array()返回的数组既包含第一种,也包含键值对的形式,我们可以这样读取数据,(假如数据库的字段是 username,passwd):
$row['username'], $row['passwd']
------解决方案--------------------
mysql_fetch_row是从结果集取出1行数组,作为枚举
mysql_fetch_array是从结果集取出一行数组作为关联数组,或数字数组,两者兼得
eg:
$sql="select abc,def from a";
$res=mysql_query($sql);
那么:
$row=mysql_fetch_row($res);
$row结果是两个:$row[0]和$row[1]
那么:
$row=mysql_fetch_array($res);
$row结果是4个:$row[0]、$row[1]、$row["abc"]和$row["def"]

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