index.php
实例
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<style>
body {padding:100px 0 0;}
.paging {text-align:center;}
</style>
</head>
<body>
<?php
require 'lib/func_pdo.php';
require 'lib/fun_paging.php';
$pdo = connect('php', 'mysql', '127.0.0.1', 'utf8', '3306', 'root', 'root');
// 获取总记录数
$total = find($pdo, 'staff', 'count(*) as total');
$record = $total['total'];
$pagesize = 4;
// 获取总页数
$page = ceil($record / $pagesize);
$p = isset($_GET["p"]) ? intval($_GET["p"]) : 1;
$staffs = select($pdo, 'staff', ['staff_id', 'name', 'sex', 'age', 'salary'], '', 'staff_id desc limit ' . ($p - 1) * $pagesize . ',' . $pagesize);
?>
<div class="container">
<table id="tbl" class="table table-striped table-bordered table-hover">
<tr style="text-align:center;">
<td><b>ID</b></td>
<td><b>姓名</b></td>
<td><b>性别</b></td>
<td><b>年纪</b></td>
<td><b>薪酬</b></td>
</tr>
<?php
if (!empty($staffs)) {
foreach ($staffs as $v) {
?>
<tr style="text-align:center;">
<td><?php echo $v['staff_id'] ?></td>
<td><?php echo $v['name'] ?></td>
<td><?php echo $v['sex'] == 0 ? '男' : '女' ?></td>
<td><?php echo $v['age'] ?></td>
<td><?php echo $v['salary'] ?></td>
</tr>
<?php
}
}
?>
</table>
</div>
<div class="paging">
<?php echo paging($p, $page); ?>
</div>
</body>
</html>运行实例 »
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func_pdo.php
实例
<?php
/*
* PDO数据库操作函数库
*/
if (!function_exists("connect")) {
/*
* 数据库连接
* @param type $dbname
* @param type $type
* @param type $host
* @param type $charset
* @param type $port
* @param string $user
* @param string $pass
*/
function connect($dbname, $type = 'mysql', $host = '127.0.0.1', $charset = 'utf8', $port = '3306', $user = 'root', $pass = 'root') {
$dsn = "{$type}:host={$host};dbname={$dbname};charset={$charset};port={$port}";
$user = $user;
$pass = $pass;
$options = [
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, //错误模式
PDO::ATTR_CASE => PDO::CASE_NATURAL, // 自然名称
PDO::ATTR_EMULATE_PREPARES => true, // 启用模拟功能
PDO::ATTR_PERSISTENT => true,
];
try {
$pdo = new PDO($dsn, $user, $pass, $options);
// echo 'connect ok!';
} catch (PDOException $e) {
print '连接错误' . $e->getMessage();
die();
}
return $pdo;
}
}
if (!function_exists("insert")) {
/*
* 新增数据
* @param type $pdo
* @param type $tabname
* @param type $data
*/
function insert($pdo, $tabname, $data = []) {
// insert news set title = :title, content = :content;
$sql = "insert ignore {$tabname} set ";
foreach (array_keys($data) as $v) {
$sql .= $v . ' =:' . $v . ', ';
}
$sql = rtrim(trim($sql), ',');
// die($sql);
$stmt = $pdo->prepare($sql);
foreach ($data as $k => $v) {
$stmt->bindValue(":{$k}", $v);
}
if ($stmt->execute()) {
if ($stmt->rowCount() > 0) {
return true;
}
} else {
return false;
}
}
}
if (!function_exists("update")) {
/*
* 更新数据
* @param type $pdo
* @param type $tabname
* @param type $data
* @param type $where
*/
function update($pdo, $tabname, $data = [], $where = '') {
// update news set title = :title, content = :content where id = 1
$sql = "update $tabname set ";
foreach (array_keys($data) as $v) {
$sql .= $v . " = :" . $v . ', ';
}
$sql = rtrim(trim($sql), ',');
if (!empty($where)) {
$sql .= " where " . $where;
} else {
exit('条件不能为空');
}
$stmt = $pdo->prepare($sql);
foreach ($data as $k => $v) {
$stmt->bindValue(":{$k}", $v);
}
if ($stmt->execute()) {
if ($stmt->rowCount() > 0) {
return true;
}
} else {
return false;
}
}
}
if (!function_exists("find")) {
/*
* 查询单条记录
* @param type $pdo
* @param type $tabname
* @param type $fields
* @param type $where
*/
function find($pdo, $tabname, $fields, $where = '') {
$sql = "select ";
if (is_array($fields)) {
foreach ($fields as $v) {
$sql .= $v . ',';
}
} else {
$sql .= $fields . ',';
}
$sql = rtrim(trim($sql), ',');
$sql .= " from $tabname ";
if (!empty($where)) {
$sql .= " where " . $where;
}
$sql .= ' limit 1';
$stmt = $pdo->prepare($sql);
if ($stmt->execute()) {
if ($stmt->rowCount() > 0) {
// $stmt->setFetchMode(PDO::FETCH_ASSOC);
return $stmt->fetch(PDO::FETCH_ASSOC);
}
} else {
return false;
}
}
}
if (!function_exists("select")) {
/*
* 查询多条记录
* @param type $pdo
* @param type $tabname
* @param type $fields
* @param type $where
* @param type $order
* @return boolean
*/
function select($pdo, $tabname, $fields, $where = '', $order = '') {
$sql = "select ";
if (is_array($fields)) {
foreach ($fields as $v) {
$sql .= $v . ',';
}
} else {
$sql .= $fields . ',';
}
$sql = rtrim(trim($sql), ',');
$sql .= " from $tabname ";
if (!empty($where)) {
$sql .= " where " . $where;
}
if (!empty($order)) {
$sql .= " order by " . $order;
}
$stmt = $pdo->prepare($sql);
// die($stmt->queryString); 查看sql语句
if ($stmt->execute()) {
if ($stmt->rowCount() > 0) {
// $stmt->setFetchMode(PDO::FETCH_ASSOC);
return $stmt->fetchAll(PDO::FETCH_ASSOC);
}
} else {
return false;
}
}
}
if (!function_exists("delete")) {
/*
* 删除一条记录
* @param type $pdo
* @param type $tabname
* @param type $where
*/
function delete($pdo, $tabname, $where) {
$sql = "delete from $tabname ";
if (!empty($where)) {
$sql .= "where " . $where;
} else {
exit('条件不能为空');
}
$stmt = $pdo->prepare($sql);
if ($stmt->execute()) {
if ($stmt->rowCount() > 0) {
return true;
}
} else {
return false;
}
}
}运行实例 »
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fun_paging.php
实例
<?php
/*
* 分页函数
* @param type $p
* @param type $page
*/
function paging($p, $page) {
$str = "<ul class = 'pagination'>";
$str .= "<li><a href = '?p=1'>首页</a></li>";
if ($p == 1) {
$str .= "<li class='disabled'><a href='javascript:;'>上一页</a></li>";
} else {
$str .= "<li><a href='?p=" . ($p - 1) . "'>上一页</a></li>";
}
$active = '';
for ($i = 1; $i <= $page; $i++) {
if ($p == $i) {
$active = 'active';
} else {
$active = '';
}
$str .= "<li class='{$active}'><a href='?p={$i}'>{$i}</a></li>";
}
if ($p == $page) {
$str .= "<li class='disabled'><a href='javascript:;'>下一页</a></li>";
} else {
$str .= "<li><a href='?p=" . ($p + 1) . "'>下一页</a></li>";
}
$str .= "<li><a href='?p={$page}'>尾页</a></li>";
$str .= "</ul>";
return $str;
}运行实例 »
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