What I'm attempting to do with the below code is call a PHP function from an drop-down menu.
Is there a clean way of doing this?
code:
<html>
<head>
</head>
<body>
<?php
function OnSelectionChange() {
echo("OK IT WORKS");
}
?>
<section>
<select onchange="OnSelectionChange()">
<option value='' disabled selected>Assign Driver</option>
<option value='4353'>Steve Jobs</option>
<option value='3333'>Ian Wright</option>
<option value='66666'>Mark James</option>
</select>
</section>
</body>
</html>
You can get the selected value from the drop down list simply using php without using JavaScript.
<html>
<head>
<title>Country</title>
</head>
<body>
<form method="POST" action="">
Select Your Country
<select name="country" onchange="this.form.submit()">
<option value="" disabled selected>--select--</option>
<option value="india">India</option>
<option value="us">Us</option>
<option value="europe">Europe</option>
</select>
</form>
<?php
if(isset($_POST["country"])){
$country=$_POST["country"];
echo "select country is => ".$country;
}
?>
</body>
</html>
simple ajax using jquery
index page
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
$('#myDropDown').change(function(){
//Selected value
var inputValue = $(this).val();
alert("value in js "+inputValue);
//Ajax for calling php function
$.post('submit.php', { dropdownValue: inputValue }, function(data){
alert('ajax completed. Response: '+data);
//do after submission operation in DOM
});
});
});
</script>
</head>
<body>
<select id="myDropDown">
<option value='' disabled selected>Assign Driver</option>
<option value='4353'>Steve Jobs</option>
<option value='3333'>Ian Wright</option>
<option value='66666'>Mark James</option>
</select>
</body>
</html>
in submit.php
<?php
function processDrpdown($selectedVal) {
echo "Selected value in php ".$selectedVal;
}
if ($_POST['dropdownValue']){
//call the function or execute the code
processDrpdown($_POST['dropdownValue']);
}
for simple js ajax use XMLHttpRequest
Does not connect onchange event with php function.
must use javascript function
<script>
function OnSelectionChange()
{
alert("OK IT WORKS");
}
</script>
<html>
<head>
<title>Country</title>
</head>
<body>
<form>
Select Your Country
<select name="country" onchange="this.form.submit()">
<option value="" disabled selected>--select--</option>
<option value="india">India</option>
<option value="us">Us</option>
<option value="europe">Europe</option>
</select>
</form>
<?php
if(isset($_GET["country"])){
$country=$_GET["country"];
echo "select country is => ".$country;
}
?>
</body>
</html>
Can't do that, use JavaScript function instead
<html>
<head>
</head>
<body>
<script>
function OnSelectionChange()
{
alert("OK IT WORKS");
}
</script>
<section>
<select onchange="OnSelectionChange()">
<option value='' disabled selected>Assign Driver</option>
<option value='4353'>Steve Jobs</option>
<option value='3333'>Ian Wright</option>
<option value='66666'>Mark James</option>
</select>
</section>
</body>
</html>
This mild adaptation has worked well for me. So very many thanks to vivekcs0114 and furthermore nicely avoids JS and the required Ajax solution which after around 200 miserable attempts has been a total disaster.
<form method="post" action="">
<select method="post" name="areasel" onchange="this.form.submit()">
<option value="Choose one">Choose one</option>
<option value="Complete Airframe">Complete Airframe</option>
<option value="Armstrong Siddeley">Armstrong Siddeley</option>
<option value="Something">Something</option>
</select>
</form>
<?php
if(isset($_POST["areasel"]))
{
$type=$_POST["areasel"];
echo "<BR>Do some SQL stuff using :".$type;
}
?>
Related
I am trying to put countries flag infront of there respective country code likein gmail registration something like this:
I tried with img src and background but images are not visible.I have a table in mysql with ISO,country name,code. I am trying to use https://ipdata.co/flags api to populate flag.
My code:
<select Emp Name='NEW'>
<option value="">--- Select ---</option>
<?
$list=mysqli_query($con,"select * from country");
while($row_list=mysqli_fetch_assoc($list)){
$display="+".$row_list['phonecode']."-".$row_list['name'];
$flag=$row_list['isosmall'];
?>
<option style="background-image:url(https://ipdata.co/flags/<?php echo $flag;?>.png);"></option>
// <option value="<img src="https://ipdata.co/flags/<?php echo $flag;?>.png"/></option>
// <? echo $display; ?>"</option><? if($row_list['iso']==$select){ echo "selected"; } ?>
// <?//echo $row_list['name'];
//echo $display;?>
</option>
<?
}
?>
</select>
You can do it with this jquery plugin and replace with your data:
HTML:
<html>
<head>
<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/jquery.selectboxit/3.8.0/jquery.selectBoxIt.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.12.0/jquery-ui.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.selectboxit/3.8.0/jquery.selectBoxIt.min.js"></script>
</head>
<body>
<select class="country" name="wcpbc-manual-country" id="country">
<option value="AU" data-iconurl="https://aus.merchnow.com/img/location-aus.png">AU some text</option>
<option value="IN" data-iconurl="https://images0.voylla.com/flags/inr.gif">IN some text</option>
</select>
</body>
</html>
JS:
$("#country").selectBoxIt();
JSFiddle example
I'm want to show php include based on the drop down menu choice.
But the trick is that I want to show the include before submitting the page.
<?php include 'page.php'; ?>
<select name="s1"style="width: 70px;" >
<optgroup label="My Input">
<option value="">Select...</option>
<option value="one kind</option>
<option value="second kind</option>
</select>
How can I show my page based on option selected before page is submited?
I found it!
<!DOCTYPE html>
<html>
<body>
<p>Select a new car from the list.</p>
<select id="mySelect" onchange="myFunction()">
<option value="Audi">Audi
<option value="BMW">BMW
<option value="Mercedes">Mercedes
<option value="Volvo">Volvo
</select>
<p>When you select a new car, a function is triggered which outputs the value of the selected car.</p>
<p id="demo"></p>
<script>
function myFunction() {
var x = document.getElementById("mySelect").value;
document.getElementById("demo").innerHTML = "You selected: " + x;
}
</script>
</body>
</html>
i have a dropdown menu and a submit button.. i want that when i select English Language and cick on submit then i redirect page English.php.
here is my code.. but it is not working....
<?php $lang=$_REQUEST['language']; ?>
<form action="<?php echo $lang; ?>" method="Post">
<select name="language">
<option>select one</option>
<option>English</option>
<option>Hindi</option>
</select>
<input type="submit">
</form>
You need to specify a value in your option tag. However, it is not safe to let the user specify the script to run. So you you should examine the values from the form in your PHP code and decide where to send the user.
<?php
$lang=$_REQUEST['language'];
switch ($lang) {
case 'english':
$page = 'english.php';
break;
case 'hindi':
$page = 'hindi.php';
break;
default:
$page = null;
}
if ($page) {
header("Location: ".$_POST['language']);
exit;
}
?>
<form method="post">
<select name="language">
<option value="">select one</option>
<option value="english">English</option>
<option value="hindi">Hindi</option>
</select>
</form>
For that you must have value defined for option
<select name="language">
<option value="">select one</option>
<option value="English.php">English</option>
<option value="Hindi.php">Hindi</option>
</select>
above are HTML code now when form is posted redirect to selected option as below.
if(isset($_POST['submit']))
{
header("Location: ".$_POST['language']);
exit;
}
or you can change the action of the form by jQuery, like:
$('select[name="language"]').change(function(){
$('form').attr('action' , $(this).val())
});
Please find a more detailed approach
<script language="javascript">
function goPage() {
if (document.frm.language.value != '') {
document.frm.action = document.frm.language.value;
document.frm.submit();
}
}
</script>
<form name="frm" method="get">
<select name="language">
<option value="">select one</option>
<option value="English.php">English</option>
<option value="Hindi.php">Hindi</option>
</select>
<input type="button" value="Go" onclick="javascript:goPage()" />
</form>
by using javascript
html code:
<select name="dropdpown" size="1" id="select-anchor">
<option value="#link">foo</option>
<option value="#link">bar</option>
</select>
script code:
$(document).ready(function () {
$('#select-anchor').change( function () {
var targetPosition = $($(this).val()).offset().top;
$('html,body').animate({ scrollTop: targetPosition}, 'slow');
});
});
demo
I want to display a number of textboxes in a form based on the selected option from a dropdown listbox.
For example, if user selects 1 then 1 textbox should be shown and if user selects 2 then 2 textboxes should be displayed. And I need to do it in PHP.
I found some answers using jQuery. Can we use jQuery inside PHP? If yes, then how?
Edit
#Edwin Alex
This is how my select option looks like.
<h2><u>DEPENDENT DETAILS</u></h2><br />
<table border="1" style="border-style:dotted" width="100%" id="dependenttable">
<tr><td>No of Dependent</td><td><select name="numDep" id="dropdown">
<option value="">Please Select</option>
<option value="0">0</option>
<option value="1">1</option>
<option value="2">2</option></select></td></tr>
<tr id="textboxDiv"></tr>
At the end of file inside <> these I have written your code.
You can use Jquery to get this. Try this,
HTML :
<tr><td>No of Dependent</td><td><select name="numDep" id="dropdown">
<option value="">Please Select</option>
<option value="0">0</option>
<option value="1">1</option>
<option value="2">2</option></select></td>
</tr>
<tr id="textboxDiv"></tr>
Jquery :
<script type="text/javascript">
$(document).ready(function() {
$("#dropdown").change(function() {
var selVal = $(this).val();
$("#textboxDiv").html('');
if(selVal > 0) {
for(var i = 1; i<= selVal; i++) {
$("#textboxDiv").append('<input type="text" name="textVal[]" value="" />');
}
}
});
});
</script>
Paste this code at the bottom of your page inside tag.
Your select box ID should be dropdown.
You need to have a div with an ID textboxDiv to place your generated textboxes.
I think you can do it easily with the help of JavaScript. Here is an example of it. Try it and modify it according to your requirement
<html>
<head>
<title>Select DIV to show</title>
<script type="text/javascript">
function show(obj) {
no = obj.options[obj.selectedIndex].value;
count = obj.options.length;
for(i=1;i<count;i++)
document.getElementById('myDiv'+i).style.display = 'none';
if(no>0)
document.getElementById('myDiv'+no).style.display = 'block';
}
</script>
</head>
<body>
<form name="myForm">
<select onChange="show(this)">
<option value="0">Select</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
</form>
<div id="myDiv1" style="display:none"> <form>
<select>
<option value="0">Select</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
</form></div>
<div id="myDiv2" style="display:none"><form><input type="text" ><br>
<input type="text"/><br>
<input type="submit"/></form></div>
<div id="myDiv3" style="display:none"><form><input type="text" ><br>
<input type="text"/><br>
<input type="submit"/></form></div>
</body>
</html>
In this example just change the code in "myDiv1", "myDiv2", "myDiv3". I think it will hep you.:)
I am trying to call a javascript function from the onchange attribute of the select tag ! My issue is that I am passing the name attribute of the select to the function which always go null.
<body>
<form action="" method="post">
<select name="slct" id="name" onchange="rohan('measurement_conversion', '<?php echo isset($_POST["slct"])?$_POST["slct"]:"null" ?>')">
<option value="yes" selected="selected"> yes </option>
<option value="nopes"> nopes </option>
<option value="may be"> May be </option>
<option value="dont know"> dont know </option>
</select>
</form>
<div id="abc">
</div>
</body>
And here my javascript function
<script>
function rohan(var1, var2)
{
document.getElementById("abc").innerHTML=var1 + " " + var2;
}
</script>
It always prints null..
Any help will be appreciated !
HTML:
<body>
<form action="" method="post">
<select name="slct" id="name" onchange="rohan(this.value)">
<option>Select</option>
<option value="yes" selected="selected"> yes </option>
<option value="nopes"> nopes </option>
<option value="may be"> May be </option>
<option value="dont know"> dont know </option>
</select>
</form>
</body>
JS:
<script>
function rohan(value)
{
//you can get the value from arguments itself
alert(value);
}
</script>
PHP is run on the server before JavaScript is ever run in the browser. It doesn't get re-evaluated when the user changes the selected item.
No put in tag HTML attribute javascript, onchange is better in the script:
<script>
var b=document.getElementById('name');
b.onchange=function (){
var a=document.getElementById('name').value;
console.log(a);
}
</script>