我正在尝试从动态创建的表单字段访问数据并将其存储到数据库中。我不知道该怎么做。我尝试了很多方法但没有奏效。请帮助我。谢谢阅读这……
<html lang="en">
<head>
<title>toggle</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<?php
$link = mysql_connect('localhost', 'root', '');
if (!$link) {
die('Could not connect to MySQL server: ' . mysql_error());
}
$dbname = 'attendance';
$db_selected = mysql_select_db($dbname, $link);
if (!$db_selected) {
die("Could not set $dbname: " . mysql_error());
}
$res = mysql_query('select * from student', $link);
if(isset($_POST["submit"]))
{
$name=$_POST['student'];
echo $name;
}
?>
<script type="text/javascript">
function change(obj) {
var tr=obj.parentNode; // this may change depending on the html used
tr.style.backgroundColor=(obj.checked)? 'green' : 'red';
}
</script>
<style type="text/css">
.nochange, tr {background-color:green;}
</style>
</head>
<body onLoad="change(this)">
Report Attendance
<table border="1" cellspacing="2" cellpadding="5" summary="">
<form name="myform" action="" method="post">
<?php while ($row = mysql_fetch_assoc($res)){
echo "<tr class='nochange'><td><input type='checkbox' name='student' value='" . $row['stu_id'] . "' checked style='background:#f00;' onClick='change(this);'>" . $row['stu_name'] . "<br />"."</td></tr>";
}?>
<input type="submit" name="submit" value="submit"/>
</form>
</table>
</body>
</html>
最佳答案
将复选框设为数组
<html lang="en">
<head>
<title>toggle</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<?php
$link = mysql_connect('localhost', 'root', '');
if (!$link) {
die('Could not connect to MySQL server: ' . mysql_error());
}
$dbname = 'attendance';
$db_selected = mysql_select_db($dbname, $link);
if (!$db_selected) {
die("Could not set $dbname: " . mysql_error());
}
$res = mysql_query('select * from student', $link);
if(isset($_POST["submit"]))
{
//Here goes array
for($i=0;$i<count($_POST['student']);$i++)
{
$name=$_POST['student'][$i];
echo $name;
}
}
?>
<script type="text/javascript">
function change(obj) {
var tr=obj.parentNode; // this may change depending on the html used
tr.style.backgroundColor=(obj.checked)? 'green' : 'red';
}
</script>
<style type="text/css">
.nochange, tr {background-color:green;}
</style>
</head>
<body onLoad="change(this)">
Report Attendance
<table border="1" cellspacing="2" cellpadding="5" summary="">
<form name="myform" action="" method="post">
<?php while ($row = mysql_fetch_assoc($res)){
echo "<tr class='nochange'><td><input type='checkbox' name='student[]' value='" . $row['stu_id'] . "' checked style='background:#f00;' onClick='change(this);'>" . $row['stu_name'] . "<br />"."</td></tr>";
}?>
<input type="submit" name="submit" value="submit"/>
</form>
</table>
</body>
</html>
关于php - 如何使用post in循环访问表单数据，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/35266516/