php - 如何使多个 HTML 表单的单个提交按钮将每个表条目显示为行中的新表单?
问题描述
我正在尝试获取多个 HTML 表单的单个提交按钮,或者我可能还需要改进多个 HTML 表单(请提出建议)。
表和数据库的屏幕截图如下。
数据库表tbltest
问题:我需要制作单个提交按钮,而不是上面每行的多个提交按钮(实际上是一个不同的 HTML 表单),在其中我对所有行执行复选框操作,然后单击它可以更新所有行的值表 tbltest 但执行每个复选框操作然后按每个提交会很痛
目前,我已经完成了每个 HTML 表单都有单独的提交按钮,并且每个表单都是显示 SQL 表值的表行和一列 ie Status
(默认设置为0
意味着person not selected
,用户将在网页上看到数据库条目http://localhost/test1/submitform.php
并更改0
表示基于值,即我在网页上显示的行中的个人信息)1
。person selected
进一步检查复选框并提交单击该status
行值的该人的值在 table 中更新tbltest
。
以下是我正在使用的所有代码文件。
文件connection.php
<?php
// set the timezone first
if(function_exists('date_default_timezone_set')) {
date_default_timezone_set("Asia/Kolkata");
}
$localhost = 'localhost';
$user = 'root';
$password = '';
$database = 'test';
$conn = new mysqli($localhost, $user, $password);
//check connection
if($conn->connect_error){
die("Connection Failed".$conn->connect_error);
}
//connect database
mysqli_select_db($conn, $database);
?>
文件submitform.php
<!DOCTYPE html>
<html>
<head>
<title>Submit Form</title>
<style type="text/css">
table{
border-collapse: separate;
border-spacing: 0px; /* Apply cell spacing */
}
table, th, td{
border: 1px solid #666;
}
table th, table td{
padding: 5px; /* Apply cell padding */
}
button{
margin-left: 10px;
}
.tableheading{
font-weight: bold;
}
</style>
</head>
<body>
<?php
include('connection.php');
echo "<table border='1' cellpadding='2' cellspacing='0'>";
echo "<div class='tableheading'>";
echo "<input type='text' value='Id'>";
echo "<input type='text' value='Name'>";
echo "<input type='text' value='Age'>";
echo "<input type='text' value='Gender'>";
echo "</div>";
echo "<br>";
$selectSql = "SELECT * FROM tbltest";
$result = $conn->query($selectSql);
// $result = mysqli_execute($selectSql);
while($row = mysqli_fetch_array($result)){
echo "<form action='selected.php' method='post'>";
echo "<input type='text' name='id' value=".$row['Id'].">";
echo "<input type='text' name='name' value=".$row['Name'].">";
echo "<input type='text' name='age' value=".$row['Age'].">";
echo "<input type='text' name='gender' value=".$row['Gender'].">";
echo "<input type='checkbox' name='yes' value='1'>";
echo "<label>Selected</select>";
echo "<input type='checkbox' name='no' value='2'>";
echo "<label>Not selected</select>";
echo "<button type='submit' name='selectionsubmit'>Submit</button>";
echo "</form>";
echo "<br>";
}
echo "</tr>";
echo "</table>";
?>
</body>
</html>
文件selected.php
<?php
include('connection.php');
if($_SERVER['REQUEST_METHOD'] === 'POST'){
if(isset($_POST['selectionsubmit'])){
$id = $_POST['id'];
$name = $_POST['name'];
$age = $_POST['age'];
$gender = $_POST['gender'];
if(isset($_POST['yes'])){
$select=1;
}else{
$select=0;
}
$updateSql = "UPDATE tbltest SET Status='$select' WHERE Id = '$id'";
if($conn->query($updateSql) == TRUE){
echo "Table Updated successfully";
}
}
}
?>
<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
</body>
</html>
解决方案
我有 1/2 小时的空闲时间,所以为了帮助您,我整理了一些更改的代码,以支持我之前就无效标记和处理 POST 数据的另一种方法所做的评论。
/*
submitform.php
--------------
A single form contains the entire table
with a single submit button that submits
the entire form. ALL entries in the form
will be POSTed to the form's action handler.
*/
echo "
<form action='selected.php' method='post'>
<table>
<tr>
<th>ID</th>
<th>Name</th>
<th>Age</th>
<th>Gender</th>
<th>Selected</th>
<th>Not-Selected</th>
</tr>";
/*
fetch records from db and add a new table-row
with 6 table-cells per row.
The name of the input elements end with []
to signify an array. When processing the POST
data you can iterate through the records quite
easily.
*/
$i=1;
$sql = "select `id`,`name`,`age`,`gender`, `status` from `tbltest`";
$result = $conn->query( $sql );
while( $row = mysqli_fetch_array( $result ) ){
$yes = intval( $row['status'] )==1 ? 'checked' : '';
$no = intval( $row['status'] )==0 ? 'checked' : '';
printf("
<!-- record: %d -->
<tr>
<td><input type='text' name='id[]' value='%s' /></td>
<td><input type='text' name='name[]' value='%s' /></td>
<td><input type='text' name='age[]' value='%s' /></td>
<td><input type='text' name='gender[]' value='%s' /></td>
<!--
using a pair of checkboxes when only 1 option should be selected
does not make sense - a radio button is a better option
-->
<td><label for='yes'>Yes <input type='radio' name='status_{$i}[]' value='1' %s/></select></td>
<td><label for='no'>No <input type='radio' name='status_{$i}[]' value='0' %s/></select></td>
</tr>",
$i,
$row['id'],
$row['name'],
$row['age'],
$row['gender'],
$yes,
$no
);
$i++;
}
echo "
<tr>
<td colspan=5> </td>
<td><input type='submit' /></td>
</tr>
</table>
</form>";
并处理提交:
<?php
/* selected.php */
if( $_SERVER['REQUEST_METHOD'] === 'POST' && isset( $_POST['id'], $_POST['name'], $_POST['age'], $_POST['gender'] ) ){
require 'connection.php';
$ids = $_POST['id'];
$names = $_POST['name'];
$ages = $_POST['age'];
$genders = $_POST['gender'];
$sql='UPDATE `tbltest` SET `name`=?, `age`=?, `gender`=?, `status`=? WHERE `id` = ?';
$stmt=$conn->prepare( $sql );
if( $stmt ){
$stmt->bind_param( 'sssii', $name, $age, $gender, $status, $id );
foreach( $ids as $index => $id ){
$i=$index+1;
$name = $names[ $index ];
$age = $ages[ $index ];
$gender = $genders[ $index ];
$status = $_POST[ sprintf( 'status_%d', $i ) ][0];
$id = $ids[ $index ];
$stmt->execute();
}
} else {
exit('error: failed to prepare sql query');
}
$stmt->close();
http_response_code( 200 );
exit( header( 'Location: submitform.php' ) );
}
/*
methods other than POST or POST with incorrect fields will receive a 405 error
~ Method Not Allowed
*/
http_response_code( 405 );
exit();
?>
基于以下数据库表
create table `tbltest` (
`id` int(10) unsigned not null auto_increment,
`name` varchar(50) null default null,
`age` tinyint(3) unsigned null default null,
`gender` varchar(6) not null default 'male',
`status` bit(1) not null default b'0',
primary key (`id`)
)
engine=innodb;
+--------+---------------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+--------+---------------------+------+-----+---------+----------------+
| id | int(10) unsigned | NO | PRI | NULL | auto_increment |
| name | varchar(50) | YES | | NULL | |
| age | tinyint(3) unsigned | YES | | NULL | |
| gender | varchar(6) | NO | | Male | |
| status | bit(1) | NO | | b'0' | |
+--------+---------------------+------+-----+---------+----------------+
+----+----------+------+--------+--------+
| id | name | age | gender | status |
+----+----------+------+--------+--------+
| 1 | Rinku | 23 | Male | 1 |
| 2 | Ricky | 21 | Male | |
| 3 | Samantha | 15 | Female | 1 |
+----+----------+------+--------+--------+
上面的代码生成下面的 HTML 表格
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