PHP PDO的FETCH_NUM、FETCH_BOTH、FETCH_ASSOC

不容易混淆的有：FETCH_CLASS,FETCH_COLUMN，FETCH_OBJ...

数据库的连接准备部分

1 $dsn = 'mysql:host=127.0.0.1;port=3306;dbname=cardslg';
2 $username = 'root';
3 $password = '';
4 $options = array(
5     PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES utf8',
6 );
7 $pdo = new PDO($dsn,$username,$password,$options);
8 
9 $stmt = $pdo->prepare("SELECT * FROM card_users");
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1.FETCH_NUM

1 $stmt->setFetchMode(PDO::FETCH_NUM);
2 $stmt->execute();
3 $queries = $stmt->fetch();
4 
5 file_put_contents("log.txt",print_r($queries,true));
View Code

结果：

1 Array
2 (
3     [0] => 1
4     [1] => lvpeilin
5     [2] => 10
6     [3] => 1
7     [4] => 2016-12-16 11:55:30
8 )
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2.FETCH_ASSOC

1 $stmt->setFetchMode(PDO::FETCH_ASSOC);
2 $stmt->execute();
3 $queries = $stmt->fetch();
4 
5 file_put_contents("log.txt",print_r($queries,true));
View Code

结果：

1 Array
2 (
3     [id] => 1
4     [user_name] => lvpeilin
5     [vip] => 10
6     [consortium_id] => 1
7     [created_at] => 2016-12-16 11:55:30
8 )
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3.FETCH_BOTH

1 $stmt->setFetchMode(PDO::FETCH_BOTH);
2 $stmt->execute();
3 $queries = $stmt->fetch();
4 
5 file_put_contents("log.txt",print_r($queries,true));
View Code

结果：

 1 Array
 2 (
 3     [id] => 1
 4     [0] => 1
 5     [user_name] => lvpeilin
 6     [1] => lvpeilin
 7     [vip] => 10
 8     [2] => 10
 9     [consortium_id] => 1
10     [3] => 1
11     [created_at] => 2016-12-16 11:55:30
12     [4] => 2016-12-16 11:55:30
13 )
View Code
posted @ 2016-12-19 14:11  GoodByeZ  阅读(464)  评论(0)  编辑  收藏  举报