
2:然后使用INSERT INTO 语句用于向数据库表中插入新记录。
具体示例:
(1)首先创建了一个名为 "Persons" 的表,有三个列:"Firstname", "Lastname" 以及 "Age"。
<?php
$con = <a href="https://www.baidu.com/s?wd=mysql_connect&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1d9m1nzuARvmhcLuWb1PvF90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPHR1n164rHc4rj6YP16znHTz" target="_blank" class="baidu-highlight">mysql_connect</a>("localhost","peter","abc123")
if (!$con)
{
die('Could not connect: ' . mysql_error())
}
<a href="https://www.baidu.com/s?wd=mysql_select_db&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1d9m1nzuARvmhcLuWb1PvF90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPHR1n164rHc4rj6YP16znHTz" target="_blank" class="baidu-highlight">mysql_select_db</a>("my_db", $con)
mysql_query("INSERT INTO Persons (FirstName, LastName, Age)
VALUES ('Peter', 'Griffin', '35')")
mysql_query("INSERT INTO Persons (FirstName, LastName, Age)
VALUES ('Glenn', 'Quagmire', '33')")
mysql_close($con)
?>
(2)其次创建一个 HTML 表单,这个表单可把新记录插入 "Persons" 表。
<html>
<body>
<form action="insert.php" method="post">
Firstname: <input type="text" name="firstname" />
Lastname: <input type="text" name="lastname" />
Age: <input type="text" name="age" />
<input type="submit" />
</form>
</body>
</html>
(3)接着当用户点击上例中 HTML 表单中的提交按钮时,表单数据被发送到 "insert.php"。"insert.php" 文件连接数据库,并通过
$_POST 变量从表单取回值。然后,mysql_query() 函数执行 INSERT INTO 语句,一条新的记录会添加到数据库表中。
<?php
$con = <a href="https://www.baidu.com/s?wd=mysql_connect&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1d9m1nzuARvmhcLuWb1PvF90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPHR1n164rHc4rj6YP16znHTz" target="_blank" class="baidu-highlight">mysql_connect</a>("localhost","peter","abc123")
if (!$con)
{
die('Could not connect: ' . mysql_error())
}
<a href="https://www.baidu.com/s?wd=mysql_select_db&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1d9m1nzuARvmhcLuWb1PvF90ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPHR1n164rHc4rj6YP16znHTz" target="_blank" class="baidu-highlight">mysql_select_db</a>("my_db", $con)
$sql="INSERT INTO Persons (FirstName, LastName, Age)
VALUES
('$_POST[firstname]','$_POST[lastname]','$_POST[age]')"
if (!mysql_query($sql,$con))
{
die('Error: ' . mysql_error())
}
echo "1 record added"
mysql_close($con)
?>
效果图:
代码截图:(关键部分用框框标出)
源码:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<div>
<span id="date"></span><br>
<span id="week"></span>
</div>
<script>
var showDate = document.getElementById('date') // 获取页面元素
var showWeek = document.getElementById('week') // 获取页面元素
var time = new Date()
var year = time.getFullYear() //获取年份
var month = correctDate(time.getMonth() + 1) //获取月份
var day = correctDate(time.getDate()) //获取日期
var date = "今天是" + year + "年" + month + "月" + day + "日"
var week = time.getDay() // 获取星期几,返回的是0/1/2/3/4/5/6 0代表周日
var weeks = [ "星期日","星期一","星期二","星期三","星期四","星期五","星期六"]
var toWeek = weeks[week] // 获取今日星期
showDate.innerHTML = date // 将日期显示在页面
showWeek.innerHTML = toWeek // 将星期显示在页面
/* 这是一个规范数字的函数:
当时间小于10时,在数字前面加上0,统一都是用两个数字表示,
比如3月5日就显示03月05日
*/
function correctDate(date){
if(date<10){
return '0'+date
}
return date
}
</script>
</body>
</html>
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