具体分析PHP获得所有数据库方法
在
要查询系统中都存在哪些数据库，可使用mysql_list_dbs()函数，其语法格式如下：
resource mysql_list_dbs ([ resource $link_identifier ] )
mysql_list_dbs()函数返回的结果集中包含了MySQL服务器中所有的数据库，PHP获得所有数据库示例如下：
- ?php
-
$connection=mysql_connect("localhost","root"
,"root") or die("连接服务器失败"); - $db_list = mysql_list_dbs($connection);
-
while ($row = mysql_fetch_object
($db_list)) { - echo $row->Database . " br>";
- echo " hr>";
- }
- mysql_close($connection);
- ?>
在上面PHP获得所有数据库代码中，循环输出结果集时用到了mysql_fetch_object()函数，mysql_fetch_object()函数和mysql_fetch_array()函数用法类似，不同的是 mysql_fetch_array()函数返回一个数组，而mysql_fetch_object()函数则返回一个对象。 mysql_fetch_object()函数的语法格式如下：
object mysql_fetch_object ( resource $result )
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