abstract:<?php//1.創(chuàng)建pdo對象,連接數(shù)據(jù)庫$pdo = new PDO('mysql:host=127.0.0.1;dbname=php;charset=utf8','root','root');//2.創(chuàng)建預(yù)處理對象$stmt$sql = "SELECT `id`,`name`,`position`,`mobile`,`hired
<?php
//1.創(chuàng)建pdo對象,連接數(shù)據(jù)庫
$pdo = new PDO('mysql:host=127.0.0.1;dbname=php;charset=utf8','root','root');
//2.創(chuàng)建預(yù)處理對象$stmt
$sql = "SELECT `id`,`name`,`position`,`mobile`,`hiredate` FROM `staff` WHERE `is_show` = :is_show";
$stmt = $pdo->prepare($sql);
//3.執(zhí)行
$isShow = 1;
$stmt->bindParam(':is_show',$isShow,PDO::PARAM_INT);
//$stmt->bindValue(':is_show',1,PDO::PARAM_INT);//用bindValue可以直接把字面量綁定給命名占位符
$res = $stmt->execute();
//4.拿到結(jié)果
$stmt->bindColumn(1,$id,PDO::PARAM_INT);
$stmt->bindColumn(2,$name,PDO::PARAM_STR,20);
$stmt->bindColumn(3,$position,PDO::PARAM_STR,20);
$stmt->bindColumn(4,$mobile,PDO::PARAM_STR,11);
$stmt->bindColumn(5,$hiredate,PDO::PARAM_INT);
if($res){
//1,直接用fetchAll()方法獲取到所有數(shù)據(jù)
// $staffs = $stmt->fetchAll(PDO::FETCH_ASSOC);
//2.用while+fetch()循環(huán)遍歷出結(jié)果集
$satffs = [];
while($stmt->fetch(PDO::FETCH_BOUND)){
//將變量轉(zhuǎn)換為關(guān)聯(lián)數(shù)組
$staffs[] = compact('id','name','position','mobile','hiredate');
}
}
//5.釋放結(jié)果集
$stmt = null;
//6.關(guān)閉連接
$pdo = null;
//print_r($staffs);
?>
<style>
table, tr, th, td {
border: 1px solid #ccc;
}
table{
width: 60%;
margin: 30px auto;
border-collapse: collapse;
text-align: center;
}
table caption {
font-size: 1.5em;
font-weight: bolder;
margin-bottom: 15px;
}
table thead {
background: lightblue;
}
</style>
<table>
<caption>員工信息表</caption>
<thead>
<tr>
<th>ID</th>
<th>姓名</th>
<th>職位</th>
<th>手機(jī)號</th>
<th>入職時間</th>
</tr>
</thead>
<tbody>
<?php foreach($staffs as $staff): ?>
<tr>
<td><?=$staff['id']?></td>
<td><?=$staff['name']?></td>
<td><?=$staff['position']?></td>
<td><?=$staff['mobile']?></td>
<td><?=date('Y-m-d',$staff['hiredate'])?></td>
</tr>
<?php endforeach; ?>
</tbody>
</table>
Correcting teacher:查無此人Correction time:2019-06-12 09:18:55
Teacher's summary:完成的不錯。pdo操作速度比之前的mysqli快很多。繼續(xù)加油