JavaScript
function resultfunction() {
var result = document.getElementById("result");
window.location.href = "deleteresult.php?did="+result;
}
PHP
<select id="result">
<?php
include 'model.php';
$rs=new database();
$res=$rs->result();
while($row=mysql_fetch_array($res)){
$did=$row["id"];
$dterm=$row["term"];
?>
<option id="<?php echo $dterm;?>"><?php echo $dterm;?></option>
<?php } ?>
</select>
<a href="#" onclick="resultfunction()" class="btn dropdown-toggle">Delete </a>
this is my code on the click of delete i want that javascript take id of selected option and take it to next page.... and how to get it on next page .. i want to use it as a php variable on next page ????
Use this:
<select id="result"> <option id="option1">option 1</option> <option id="option2">option 2</option> <option id="option3">option 3</option> </select> <a href="#" onclick=" resultfunction()" class="btn dropdown-toggle">Delete </a> <script> function resultfunction() { var select = document.getElementById("result"); //<---get the select var result= select.options[select.selectedIndex].value; // <--selectedIndex will let you get the value. //window.location.href="deleteresult.php?did=" +result; console.log(result); } </script>
First you need to have a value on the option
like:
<option id="option1" value='1'>option 1</option>
I've made you a jQuery
demo, see snippet below:
$('.btn').on('click', function(){ var result = $("#result").val(); console.log(result); //I've commented this line just for demonstrating purpose //window.location.href = "deleteresult.php?did=" + result; })
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <select id="result"> <option id="option1" value='1'>option 1</option> <option id="option2" value='2'>option 2</option> <option id="option3" value='3'>option 3</option> </select> <a href="#" class="btn dropdown-toggle">Delete </a>
A Javascript alternative would be to use addEventListener
instead of the deprecated onclick
:
document.getElementById("btn").addEventListener("click", function(){ var select = document.getElementById("result"); var selectedOption = select.options[select.selectedIndex].value; console.log(selectedOption); //I've commented this line just for demonstrating purpose //window.location.href="deleteresult.php?did=" + selectedOption; });
<select id="result"> <option id="option1" value='1'>option 1</option> <option id="option2" value='2'>option 2</option> <option id="option3" value='3'>option 3</option> </select> <a href="#" class="btn dropdown-toggle" id='btn'>Delete </a>
Other options would be to use either Javascript's localStorage()
or PHP's $_SESSION
And on the page you will be redirected you can get the value used as a $_GET parameter using:
echo $_GET['did'];
并且为了在deleteresult.php页面上使用该变量,你应该有一些像这样的代码
$get_did = $_GET['did'];
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