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老师批语：
1 遇到表格怎么通过php语言一次性灌入，而不是手敲进去，灵活运用数组遍历，以及字符串的拼接； 问题：为什么第三种方式判断了性别之后，前边的方式的性别也都变成了1和0？ 我理解的是这个php的工作原理有关系，先提交到服务器，服务器解析完再返回给网页，请老师解惑，谢谢！
<?php
$staffs = [
['id'=>1, 'name'=>'候亮平', 'age'=>30, 'sex'=>1, 'email'=>'hlp@php.cn', 'password'=>sha1('123456')],
['id'=>2, 'name'=>'赵瑞龙', 'age'=>40, 'sex'=>1, 'email'=>'zrl@php.cn', 'password'=>sha1('123456')],
['id'=>3, 'name'=>'李达康', 'age'=>50, 'sex'=>1, 'email'=>'ldk@php.cn', 'password'=>sha1('123456')],
['id'=>4, 'name'=>'祁同伟', 'age'=>45, 'sex'=>1, 'email'=>'qtw@php.cn', 'password'=>sha1('123456')],
['id'=>5, 'name'=>'高小琴', 'age'=>30, 'sex'=>0, 'email'=>'gxq@php.cn', 'password'=>sha1('123456')],
];
// 员工数量
$total = count($staffs);
// 标题
$title = '用户信息表';
// 表格标题
$tableTitle = $title;
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title><?php echo $title ?></title>
<style>
table,th,td {
border: 1px solid #666;
padding: 8px;
}
table {
border-collapse: collapse;
width: 80%;
text-align: center;
margin: 30px auto;
}
thead tr:first-of-type {
background-color: lightblue;
}
tbody tr:hover {
background-color: #efefef;
}
table > caption {
font-size: 1.2rem;
margin-bottom: 15px;
}
table + p {
text-align: center;
}
</style>
</head>
<body>
<table>
<caption><?php echo $title ?></caption>
<thead>
<tr>
<th>编号</th>
<th>姓名</th>
<th>年龄</th>
<th>性别</th>
<th>邮箱</th>
<th>密码</th>
</tr>
</thead>
<tbody>
<!-- 表格灌内容方法1 -->
<?php
foreach ($staffs as $staff) {
echo "<tr>";
echo "<td>".$staff['id']."</td>";
echo "<td>".$staff['name']."</td>";
echo "<td>".$staff['age']."</td>";
echo "<td>".$staff['sex']."</td>";
echo "<td>".$staff['email']."</td>";
echo "<td>".$staff['password']."</td>";
echo "</tr>";
}
?>
<!-- 表格灌内容方法2 -->
<?php
$data=" ";
foreach ($staffs as $staff) {
$data .= "<tr>";
$data .="<td>{$staff['id']}</td>";
$data .="<td>{$staff['name']}</td>";
$data .="<td>{$staff['age']}</td>";
$data .="<td>{$staff['sex']}</td>";
$data .="<td>{$staff['email']}</td>";
$data .="<td>{$staff['password']}</td>"; //双引号能够解析里边的的内容
$data .= "</tr>";
}
echo $data;
?>
<!-- 表格灌内容方法3 -->
<?php
function creatTable($staffs){
$data="";
foreach ($staffs as $staff) {
$data .= "<tr>";
$data .="<td>{$staff['id']}</td>";
$data .="<td>{$staff['name']}</td>";
$data .="<td>{$staff['age']}</td>";
$data .="<td>".($staff['sex']?'1':'0')."</td>";
$data .="<td>{$staff['email']}</td>";
$data .="<td>{$staff['password']}</td>"; //双引号能够解析里边的的内容
$data .= "</tr>";
}
return $data;
}
echo creatTable($staffs);
?>
</tbody>
</table>
<p>总计: <?php echo $total; ?>人</p>
</body>
</html>点击 "运行实例" 按钮查看在线实例
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