我有以下问题:
我想将文本字段添加到我的 html 表单中，将它们发送到我的脚本，然后重定向回来并显示字段数量及其值。
通过 jQuery 添加字段工作正常，但稍后我无法存储这些值，因为它是通过添加 DIV 完成的，并且它们具有相同的名称。
有人能指出我正确的方向吗？
这是我的index.php 和action.php 中的代码
index.php
<?php
session_start([
'cookie_lifetime' => 3600,
]);
?>
<html>
<head>
<!-- HTML5 -->
<meta charset='utf-8'>
<!-- HTML 4.x -->
<meta http-equiv='content-type' content='text/html; charset=utf-8'>
<link rel='stylesheet' href='https://unpkg.com/purecss@1.0.0/build/pure-min.css' integrity='sha384-nn4HPE8lTHyVtfCBi5yW9d20FjT8BJwUXyWZT9InLYax14RDjBj46LmSztkmNP9w' crossorigin='anonymous'>
<link rel='stylesheet' href='style/style.css'>
<meta name='viewport' content='width=device-width, initial-scale=1'>
<title>
myDrop2
</title>
<script src="scripts/jquery.js"></script>
</head>
<body>
<script>
function showLoadingMessage() {
document.getElementById('content').style.display = 'none';
var message = document.createElement('div');
message.innerHTML = '<center><h1>Wird gearbeitet, bitte warten!</h1></center>';
document.body.appendChild(message);
}
function checkRemove() {
if ($('div.d1_drops').length == 1) {
$('#remove').hide();
} else {
$('#remove').show();
}
};
$(document).ready(function() {
checkRemove()
$('#add').click(function() {
$('div.d1_drops:last').after($('div.d1_drops:first').clone());
$('div.d2_drops:last').after($('div.d2_drops:first').clone());
checkRemove();
});
$('#remove').click(function() {
$('div.d1_drops:last').remove();
$('div.d2_drops:last').remove();
checkRemove();
});
});
</script>
<center>
<div id='header'>
<b>myDrop2</b>
</div>
<br><br>
<div id='content'>
<br>
<button id='add'>[ + ]</button>
<button id='remove'>[ - ]</button>
<form action=scripts/action.php class='pure-form pure-form-aligned' onsubmit='showLoadingMessage();' method='post'>
<!-- <form action=scripts/action.php class='pure-form pure-form-aligned' onsubmit='showLoadingMessage();' method='post'> -->
<div id='settings1'>
<br>
Belichtung starten
<br><br>
<label>Warten (ms) <input name='firstwait' type='number'></label>
</div>
<div id='ventile'>
<div id='ventil1'>
<input type='radio' id='v1' name='ventile' value='1' checked='checked'>
<label for='v1'><h2>1 Ventil</h2></label>
<br><br>
<div class='d1_drops'>
<label>Tropfen 1 Dauer (ms) <input name='d1_drop[]' type='number'></label>
<br><br>
<label>Warten (ms) <input name='d1_wait[]' type='number'></label>
<br><br>
</div>
</div>
<div id='ventil2'>
<input type='radio' id='v2' name='ventile' value='2'>
<label for='v2'><h2>2 Ventile</h2></label>
<br><br>
<div class='d2_drops'>
<label>Tropfen 1 Dauer (ms) <input name='d2_drop[]' type='number'></label>
<br><br>
<label>Warten (ms) <input name='d2_wait[]' type='number'></label>
<br><br>
</div>
</div>
</div>
<div id='settings2'>
Blitzen
<br><br>
<label>Warten (ms) <input name='lastwait' type='number'></label>
<br><br>
Belichtung stoppen
<br><br>
</div>
<div id='run'>
<button type='submit'>ausführen</button>
<br>
<br>
</div>
</form>
</div>
</center>
</body>
</html>
action.php
<?php
session_start();
include ('../conf.php');
$d1_array_drop = $_POST['d1_drop'];
$d1_array_wait = $_POST['d1_wait'];
$d2_array_drop = $_POST['d2_drop'];
$d2_array_wait = $_POST['d2_wait'];
(...) do stuff with the data (..)
header('Location: ' . $_SERVER['HTTP_REFERER']);
?>
最佳答案
你可以使用sessionstorage或localstorage来记住值，如果你想从php输出值，请先将它们重定向后存储在session|files|db中，然后将值输出到js中即可
<?php
$data=$_SESSION["data"];
?><script>
var data=<?php echo json_encode($data);?>;
</script>
关于javascript - 动态添加字段到 HTML 表单、发送数据并记住添加的字段和值，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/48525740/