javascript 如何在 PHP 中获取 html <input type="hidden" id="hide"> 的值？
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How to get the value of html <input type=“hidden” id="hide"> in PHP?
提问by user2971243
This is for generating the table.
这是用于生成表。
function makeTable()
{
var row_num = 20;
var cell_num = 4;
var tab = document.createElement('table');
tab.setAttribute('id','newtable');
var tbo = document.createElement('tbody');
tbo.setAttribute('id','tabody');
var cont;
for(var c = 0 ; c < row_num ; c++)
{
var row = document.createElement('tr');
for(var k = 0 ; k < cell_num ; k++)
{
var cell = document.createElement('td');
if (k > 0)
{
cont = document.createElement("input");
cont.setAttribute('type','text');
}
else
{
cont = document.createTextNode("0" + (c+1));
}
cell.appendChild(cont);
row.appendChild(cell);
}
tbo.appendChild(row);
}
tab.appendChild(tbo);
document.body.appendChild(tab);
tab.setAttribute("align", "top-left");
}
This function is used to show the data in alert box but I want to retrieve document.getElementById('hide').value............
此函数用于在警报框中显示数据，但我想检索 document.getElementById('hide').value ........
function GetCellValues()
{
var rows = document.getElementsByTagName('tr');
var str = '';
for (var c = 1 ; c < rows.length ; c++)
{
str += '\n';
var row = rows[c];
var inputs = row.getElementsByTagName('input');
for (var k = 0 ; k < inputs.length ; k++)
{
str += inputs[k].value + ', ';
}
}
document.getElementById('hide').value = str;
I want to retrieve only this hidden control (i.e-"hide") in php.
我只想在 php 中检索这个隐藏的控件（即-“隐藏”）。
alert(document.getElementById('hide').value);
}
window.onload = function()
{
makeTable();
};
</script>
</head>
<body>
<h1><u>PROJECT</u> :</h1>
<input type="button" value="Alert" onclick = "GetCellValues()">
I want to retrieve this id in php
我想在 php 中检索这个 id
<input type="hidden" id="hide" /> <br />
<div id="mytable">
<table id = "project" border = "1" width ="60%" class = "newtable" cellpadding="10" cellspacing="0">
<tr>
<th align="center" width ="200px">Sl.No.</th>
<th align="center" width ="200px">Project Name</th>
<th align="center" width ="200px">ChangeDate</th>
<th align="center" width ="200px">Changed By</th>
</tr>
</table>
</div>
</body>
Note:I want to retrieve the hidden control through id in php ##
注意：我想通过 php ## 中的 id 来检索隐藏的控件
I want the total php code to retrieve this hidden control data(i.e-input type="hidden" id="hide") because I'm a beginner
我想要全部的 php 代码来检索这个隐藏的控件数据（即输入type="hidden" id="hide"），因为我是一个初学者
回答by Tom
You have to add a name to your input so for example:
您必须在输入中添加一个名称，例如：
<input type="hidden" id="hide" name="foo" />
To retrieve the value in php after POST form submission you can do this:
要在 POST 表单提交后检索 php 中的值，您可以执行以下操作：
<?php $var1 = $_POST["foo"]; ?>
回答by jagruti
Can you please replace this line
你能更换这条线吗
<input type="hidden" id="hide" />
to
到
<input type="hidden" id="hide" name="hide" />
and use $_POST["hide"]in you php script.
并$_POST["hide"]在您的 php 脚本中使用。
回答by Sunil Kumar
Input field must have some nameto access it
输入字段必须有一些name才能访问它
<input type="hidden" id="hide" name="hide" />
do normal fetch
做正常获取
$name = $_POST['hide'];
回答by m-t
add name property to input type and value you want to get into you php
将 name 属性添加到要进入 php 的输入类型和值
<input type="hidden" id="hide" name="flag" value="1" />
and to retrieve the value in php after POST form
并在 POST 表单后检索 php 中的值
$var1 = $_POST["flag"];
