php项目笔记（二）php部分

<?php
try
{
$pdo = new PDO('mysql:host=localhost;dbname=test','testuser','pass');
$pdo->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION);
$pdo->exec('SET NAMES "utf8"');
}
catch (PDOException $e)
{
$error = '数据库连接失败！';
$ee = $e->getMessage();
echo $error;
echo '</br>';
echo $ee;
exit();
}

$error = '数据库连接成功！';
echo $error;
$pdo = null;
?>

<?php
try
{
$sql = 'UPDATE joke SET jokedate="2012-04-01" WHERE joketext LIKE "%chicken%"';
$affectedRows = $pdo->exec($sql);
}
catch (PDOException $f)
{
$dd = '内容更新错误： '.$f->getMessage();
echo $dd;
exit();
}
$dd = "更新了 $affectedRows 行。";
echo $dd;
?>

<?php
try
{
$sql1 = 'SELECT joketext FROM joke';
$result = $pdo->query($sql1);
}
catch (PDOException $g)
{
$ff = '查询失败： '.$g->getMessage();
echo $ff;
exit();
}

echo $result['joketext'];

?>