Using Onchange To Call PHP Include And Set Php Variable?
May 14, 2010
I'm building a form in PHP. One of the fields needs to generate information based on another selected input. The first input is for "phase" and based on that I need to count how many entries there are in the database for that phase, then display posible positions(ie 1 per entry including the entry being edited/added). I know that this can't be done with only PHP.
I don't work with Javascript normally so I am struggling. I have read many similar topics, but can't find the answer I am looking for.
I thought that the solution could be to call an include file when a selection for phase is made, but I don't know how to pass the information to the PHP script.
I'd prefer not to have to reload the page or form.
Here's the code that I have so far:
Code:
<html>
<head>
<body>
<form action="edit-category.php?id=<?php echo $id; ?>" method="post"
[Code]....
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Aug 24, 2005
Can a OnChange event call a PHP function?
Currently an OnChange event on a listbox I want to pass the value (a path) to a PHP function.
Not sure if this can be done...
Currently I have captured the path... now I need to get the path into a PHP Function!
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May 5, 2010
I have a <div> like
<div id="test2">
Name : <input type="text" name="test3">
<select name="test4">
<option>A</option>
<option>B</option>
<option>C</option>
[Code]...
My requirement is on change of any contol inside div i want to call a javascript function.
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May 4, 2011
I have a button and when I click on the button I want to reload my DatePicker accordingly and launch the beforeShowDay event of the datePicker from my click event. How can I do that? How to set the DatePicker date to the ListDate[0] date?
var
ListDate
=
new
[Coe].....
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Sep 9, 2011
I want to call a method from java class using onchange in SELECT
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Jul 14, 2010
THIS WORKS:
<html><head><script type="text/javascript">
function recalc() {
alert ('Entering recalc().');
}
[Code]....
The first example works, which shows that the recalc function can be called. The second example works, which shows that onchange will trigger an alert box. BUT, the third example doesn't work. Why can't I trigger a call to the recalc function from the onchange event?
The above 3 code postings are the entire programs. Nothing has been left out or modified.
I am using IE 8.0.6001.18702.
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Apr 20, 2011
I create some iputs using this code :
Code:
And i would like to call this function on the onchange.
function c(group,position){
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Dec 9, 2011
I am simply trying to use a global variable in javascript, but can only access the variable on the second call. I can't find anything that relates to this through my searches. My application is supposed to query the server for XML that tells me which years and months are available to put into combo boxes. I want to store this xml in a global variable to access it later.
[Code]....
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Jul 23, 2005
I am using a javafunction (onclick in select) in which i am calling a
function in php (thats why i send this to both php and javascript
newsgroups).
in the onclick i call the function "Place_Selected" with the value from the
select (naam_keuze.value)
in the function the value becomes the $zoek_id and searches in the database
for the record with the id of $zoek_id
the naam_keuze.value does not give the value to $zoek_id When i replace naam_keuze.value for a number (15) i works great.
WHAT AM I DOING WRONG? Code:
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Jul 20, 2005
I'm trying to use the following script:
<script language="javaScript">
function setrepto(){
document.aForm.repno.value =
document.aForm.rep.options[document.aForm.rep.selectedIndex].value;
}
</script>
On the following form (Partly in asp):
<form name="aForm">
<select name="rep"
<option value="ALL">Select a Rep Here</option>
<%
while not slsrs.eof
repno = slsrs("SLS#")
repname = slsrs("SLSNAM")%>
<option value="<%=repno%>"><%=repname%></option>
<%slsrs.movenext
wend%>
</select>
</form>
To change the value of 'repno' in the following href, which is on the
same page:
<a href="nextpage.asp?rep=<%=repno%>">Click here</a>
So basically, as a user changes the selection, the value of repno in
the above href should change.
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Jan 21, 2010
I'm currently facing a weird issue with the onchange event. I have a web application where each blur event makes a call the webserver to store the value of the textfield. I only want to trigger that ajax call when something has changed, so i track the onchange event on each textfield to set a flag if something has changed.
The onchange event always fires to first time when i click outside of a textfield even if i didn't change anything in the field.
I narrowed it down to the following: A prefilled textfield always fires the onchange-event the first time you leave the textfield. An initially empty textfield does not fire the onchange event.
Sample code (IE 8 on Windows 7 computer):
script:
HTML:
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Feb 21, 2010
how can I call a function by using the value of a variable name?i.e.
Code:
var str = "function_name";
// call 'function_name' by using its 'str' alias
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Feb 22, 2011
I am trying to reference a session variable inside some JQuery code. Theseexamples below arewhat I am using currently just to try and see if I can get something to display and nothing shows up.[code]Just to make sure an alert works, I threw in a alert("hi"); which works fine. It is when I try to write out the session variable it fails.
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Nov 6, 2011
I'm having trouble calling a function using a variable, from within a parent function. For instance:
function parent(){
function child(){
console.log("It worked")[code]....
That results in "TypeError: 'undefined' is not a function (evaluating 'window[test]()')"
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Dec 15, 2005
I have an iframe....
<iframe src="somepage.html?var="tom";vartwo="jane";varthree="peter"">
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Aug 20, 2009
how do i call a variable from a specific function in another function outside the first one?
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Mar 22, 2010
I can call a function from a hyperlink as so:
<A HREF="javascript:go()">+ Add Text</A>
but how do I pass a variable to the function in this hyperlink?
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Nov 14, 2005
How can I call functions from the value of a variable?
I do this in PHP, like $variable(); or {$variable . 'CallBack'} or using something like call_user_func().
I've been search all day though, and can't find how to do this in javascript. Is it possible?
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Jan 12, 2010
I have a situation in which the function to be called is stored in a variable.
Code:
function Test() { this.v = 10 }
function abc(o) {
alert( this.v + " and " + o) ;[code].....
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Apr 6, 2011
i'm having trouble with some of my codes.i've been trying to put variables in function calls parameters, but it just does not work.
for example, if I try to do sth like this:
Code:
//a function that creates page numbers based on number of pictures that can be shown on the page
function MenuBar() {
pageSpan = [document.createElement('span')];[code]....
when i try to run it, it won't work.what i'm trying to do is that every time the loop runs, the "onclick" event of the created span will be the value of the loops "x" variable -1, and the value of x variable.meaning, for every new span, the parameters in the showImage() function are different.
Code:
pageSpan[1].onclick = function () { showImages(0, 1) };
pageSpan[2].onclick = function () { showImages(1, 2) };
pageSpan[3].onclick = function () { showImages(2, 3) };
pageSpan[4].onclick = function () { showImages(3, 4) };
pageSpan[5].onclick = function () { showImages(4, 5) };
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Jun 23, 2011
I'm sure it's just a syntax problem. You can ignore most of this function because most of it works. The part I'm asking about is the "coordinates" variable 4th line from the bottom. The "office3" variable is a dynamically populated office number. I have the office numbers all defined as variables somewhere else but since I can't just name the variables as numbers I had to put a $ in front of them. Basically I'm trying to call the office number variable, $1656 for example. So "coordinates" is meant to be equal to "$+the chosen office number".[code]...
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Jun 20, 2011
I am using lightbox on my site along with ExpressionEngine. I have some Jquery script in place that I need to make some changes to. I have managed everything myself except one line where the variable is changed depending on which image is clicked.
Here is a sample page and the code is for central the images
[URL]
The code I ma using is this
[code]
<script type="text/javascript" charset="utf-8">
$$('div.preview').first().addClassName('here');
//add a new link around the large image, assign it a dummy link and
//the rel: lightbox so that lightbox.js will recognize it
[Code]....
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Sep 21, 2009
How do I pass a variable as a key in a key/value pair in Ajax?
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Jun 17, 2011
I have a function that I call a variable number of times and I need to know when the calls have *all* been completed. How would I build that? As I understand the deferreds, the $.when syntax is as follows:
$.when(dfrd_func1('a'), dfrd_func2('b'),
dfrd_func3('c')).done( function() {
console.log("All Done");} );
will send "All done" to the console once each of the functions are complete.
So, I have the *same* function that I need to call a variable number of times with different parameters, i.e. :
$.when(dfrd_func('a'), dfrd_func('b'), dfrd_func('c'), ...).done(function() {console.log("All Done")});
So, is my approach wrong? Is there some way to build an array of functions that could be executed?
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Jun 14, 2010
I'm developing a multi-layered diagram as a web-page. The layers show versions of a network as it grows, with various components. I have created an image map on each layer. At the side, there is a panel where I want to display info about each component as I mouse over each element.
As a test, I used getElementbyID and inner.Html with a Javascript called writeText to display text in the side panel. However, as there are 6 layers and 20 - 30 images on each layer, I don't want to embed the text in each image map as it will make updating content a hassle and long home page.My idea is to use the ID of each image map as a variable and call the associated content from a separate page (XML maybe?) by naming the content section the same as the ID of the image map. I need to write some script that would work something like:
onMouseOver="writeText(call content with name="imagemapID")
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Nov 7, 2011
I've got this:
Code:
var noteCount = "";
jsonRequest('media.getFiles', params,
function(result) { noteCount = result['totalCount']},
function(exception) { noteCount = "0"},
true
);
The console returns results['totalCount'] with a value of 2 (that's correct).
When I call noteCount for display, it shows nothing. Neither the var set by result or exception.
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