javascript 如何将javascript变量值传递给php变量？
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How to pass the javascript variable value to php variable?
提问by Kumar Shanmugam
this is my javascript code
这是我的 javascript 代码
<script type="text/javascript">
function MyFunc(lang){
var ll = lang;
//alert(ll);
}
</script>
my html code
我的 HTML 代码
<form method="post" action="mypage.php?>">
<div>
<input type='image' src='/images/flags/us.png' name='US' value='en_EN' onclick='MyFunc(this.value)'/>
<input type='image' src='/images/flags/it.png' name='IT' value='it_IT' onclick='MyFunc(this.value)'/>
<input type='image' src='/images/flags/fr.png' name='FR' value='fr_FR' onclick='MyFunc(this.value)'/>
</div>
now how can i send the javascript var llvalue to mypage.php
现在我如何将 javascriptvar ll值发送到mypage.php
Actually I want the image alt value to pass it, How it is possible please give some idea..
实际上我希望图像 alt 值传递它，怎么可能请给出一些想法..
回答by davidkonrad
create a hidden field inside the <form>
在里面创建一个隐藏字段 <form>
<input type="hidden" name="ll" id="ll">
in javascript
在 JavaScript 中
<script type="text/javascript">
function MyFunc(lang){
var ll=document.getElementById('ll');
ll.value=lang;
}
</script>
and then you have llin PHP, when you submit the form.
然后你ll在 PHP 中，当你提交表单时。
update
更新
I guess you wonder if you have links instead of a form, like this? :
我猜你想知道你是否有链接而不是表单，像这样？：
<a href="#" class='lang'><img src="images/flags/it.png" alt="it_IT" /></a>
<a href="#" class='lang'><img src="images/flags/fr.png" alt="fr" /></a>
<a href="#" class='lang'><img src="images/flags/us.png" alt="en_EN" /></a>
And you just want to reload the page with llcontaining the desired language code?
而您只想重新加载ll包含所需语言代码的页面？
<script type="text/javascript">
$('.lang').click(function() {
var lang = $(this).find('img').attr('alt');
document.location.href='mypage.php?ll='+lang;
});
</script>
Will reload your page, eg ex mypage.php?ll=it_IT. As with the form accessible in mypage.php through $_GET['ll']
将重新加载您的页面，例如 ex mypage.php?ll=it_IT。与通过 mypage.php 访问的表单一样$_GET['ll']
Using jQuery here, since you have it on your tag-list (and it was the far easiest / fastest to produce :)
在这里使用 jQuery，因为你在你的标签列表上有它（而且它是最容易/最快的：）
回答by Paolo Gibellini
Give a name to your form, and use a hidden input to be posted to your php file
为您的表单命名，并使用隐藏输入发布到您的 php 文件
<script type="text/javascript">
function MyFunc(lang){
//var ll = lang;
document.my_form.my_var.value=lang;
}
</script>
<form name="my_form" method="post" action="mypage.php">
<div>
<input type='image' src='/images/flags/us.png' name='US' value='en_EN' onclick='MyFunc(this.value)'/>
<input type='image' src='/images/flags/it.png' name='IT' value='it_IT' onclick='MyFunc(this.value)'/>
<input type='image' src='/images/flags/fr.png' name='FR' value='fr_FR' onclick='MyFunc(this.value)'/>
</div>
<input type="hidden" name="my_var">
</form>
In your PHP file you can retrieve your data in $_POST array:
在您的 PHP 文件中，您可以检索 $_POST 数组中的数据：
$my_data=$_POST["my_var"];
回答by gabrielgmm
You can try use Json:
您可以尝试使用 Json：
1 - First. Save your page in PHP. 2 - Second. Modify your function in Javascript
1 - 首先。用 PHP 保存您的页面。2 - 第二。在 Javascript 中修改您的函数
Example
例子
var ll = lang;
//caminho do ar
$.getScript("http://www.site.com.br/busca_dados3.php?value="+ll, function(){
}
In this case, you want to create a file called 'busca_dados3.php' who receive the variables in $_REQUEST['value'];
在这种情况下，您要创建一个名为“busca_dados3.php”的文件，该文件接收 $_REQUEST['value'] 中的变量；
You need Jquery to.
你需要Jquery。
