<?php//PDO连接Mysql数据库
$dbms = 'mysql';
$dbname = 'thinkphp';
$host = 'localhost';
$user = 'root';
$pwd = '123456';
$dsn = "$dbms:host=$host;dbname=$dbname";
try {$pdo = new PDO($dsn, $user, $pwd);echo 'PDO连接Mysql成功！' . '<br>';var_dump($pdo);
} catch (Exception $e) {echo $e->getMessage() . "<br>";
}//利用fetch()方法进行查询
$dbms = 'mysql';
$dbname = 'thinkphp';
$host = 'localhost';
$user = 'root';
$pwd = '123456';
$dsn = "$dbms:host=$host;dbname=$dbname";
try {$pdo = new PDO($dsn, $user, $pwd);echo '数据库连接成功！' . '<br>';$sql = "SELECT * FROM think_user";$result = $pdo->prepare($sql);$result->execute(); ?><table><?phpwhile ($res = $result->fetch(PDO::FETCH_ASSOC)) {?><tr><td align="center"><?php echo $res['id']; ?></td><td align="center"><?php echo $res['user']; ?></td><td align="center"><?php echo $res['email']; ?></td><td align="center"><?php echo $res['date']; ?></td><td align="center"><a href="#">删除</a></td></tr><?php}?></table><?php
} catch (Exception $e) {echo $e->getMessage() . "<br>";
}
?><?php
//利用fetchAll()方法进行查询
$dbtype = 'mysql';
$dbhost = 'localhost';
$dbname = 'thinkphp';
$user = 'root';
$pwd = '123456';
$dsn = "$dbtype:host=$dbhost;dbname=$dbname";
try {$pdo = new PDO($dsn, $user, $pwd);echo '数据库连接成功！';$sql = "SELECT * FROM think_user";$result = $pdo->prepare($sql);$result->execute();$res = $result->fetchAll(PDO::FETCH_ASSOC);?><table><?phpfor ($i = 0; $i < count($res); $i++) {?><tr><td><?php echo $res[$i]['id']; ?></td><td><?php echo $res[$i]['user']; ?></td><td><?php echo $res[$i]['email']; ?></td><td><?php echo $res[$i]['date']; ?></td></tr><?php}?></table><?php
} catch (Exception $e) {echo '操作错误:' . $e->getMessage() . '<br>';
}
?><?php
//fetchColumn()方法获取下一行指定列的指
$dbtype = 'mysql';
$dbhost = 'localhost';
$dbname = 'thinkphp';
$user = 'root';
$pwd = '123456';
$dsn = "$dbtype:host=$dbhost;dbname=$dbname";
try {$pdo = new PDO($dsn, $user, $pwd);echo '数据库连接成功！';$sql = "SELECT * FROM think_user";$result = $pdo->prepare($sql);$result->execute(); ?><table><?phpwhile ($res = $result->fetchColumn(0)) {?><tr><td><?php echo $res; ?></td></tr><?php}?></table><?php
} catch (Exception $e) {echo '操作出错：' . $e->getMessage() . '<br>';
}
?><?php
//PDO中捕获SQL语句的错误
$dbtype = 'mysql';
$dbhost = 'localhost';
$dbname = 'thinkphp';
$user = 'root';
$pwd = '123456';
$dsn = "$dbtype:host=$dbhost;dbname=$dbname";
$pdo = new PDO($dsn, $user, $pwd);
echo '数据库连接成功！' . '<br>';
$sql = "SELECT * FROM think_use"; //think_use表不存在
$stmt = $pdo->prepare($sql);
$stmt->execute();
$code = $stmt->errorCode();
while ($res = $stmt->fetch(PDO::FETCH_ASSOC)) {print_r($res);echo '<br>';
}
var_dump($stmt->errorInfo());
?>