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php执行sql语句的写法_php基础

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Release: 2016-05-17 09:33:16
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复制代码 代码如下:

@mysql_connect("localhost", "root","1981427") //选择数据库之前需要先连接数据库服务器
or die("数据库服务器连接失败");
@mysql_select_db("test") //选择数据库mydb
or die("数据库不存在或不可用");
$query = @mysql_query("select * from tablename1") //执行SQL语句
or die("SQL语句执行失败");
?>


复制代码 代码如下:

@mysql_connect("localhost", "root","1981427") //选择数据库之前需要先连接数据库服务器
or die("数据库服务器连接失败");
@mysql_select_db("test") //选择数据库mydb
or die("数据库不存在或不可用");
$query = @mysql_query("insert into tablename1 values('4', 'Judy','456')")
or die("SQL语句执行失败");
?>


复制代码 代码如下:

@mysql_connect("localhost", "root","1981427") //选择数据库之前需要先连接数据库服务器
or die("数据库服务器连接失败");
@mysql_select_db("test") //选择数据库mydb
or die("数据库不存在或不可用");
$query = @mysql_query("select * from tablename1") //执行SQL语句
or die("SQL语句执行失败");
echo mysql_result($query, 0, 'username'); //输出第0行的name列
?>
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