Populate A Second DropDownList Based On A Selected Value From Other DropDownList

Jun 23, 2010

I'm trying to link two dropdownlist depending on the value you select from the first dropdownlist. What I want to do is select a value from the first dropdownlist and depending on its value show some options in the second dropdownlist. I try doing this:

1-when the OnChange event of the first dropdownlist occurs, I call a javascript that redirects to a method in a controller (for example: index/mainController/firstMethod/selectedValue).

2-the method in the controller using the url helper extracts the “selectedValue” to do a database search of the value of the second dropdownlist.

3-the same method loads the view (the one that have the ddl)

Doing this I lose the selected value of the first ddl. I think this is not the right way to do it.


Populate A Dropdownlist Based On The Selection Made In Another Dropdownlist?

Nov 6, 2010

How do I automatically populate the second dropdown based on the selection made in the first one. Say if I choose a contry in the first dropdown, then I want to display a list of cities from that country in the second dropdown. Is there a way to do this with jQuery?

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May 3, 2011

I am developing an application where I am using country (dropdown list) and state (dropdown list).The question is when 1 select country, it's states will be populated in state dropdownlist but the state list is only provided for USA and other countries are not provided so they have to type in.

So how to change state input type (TEXTBOX OR DROPDOWNLIST) based on USA (country).That is If USA -DROPDOWNLIST Else Other Countries -TEXTBOX

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Aug 26, 2010

i have a form. In this i want display the category names in one select box. Based on the selection of category if the category is having sub-category then it will show the second select box dynamically for a respective category. This is based on the category value not based on the index they select..

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May 24, 2011

what i want to do is to select multiple data from a dropdownlist and place it on a textbox.. and it will be done whenever the user clicks a data from the dropdownlist.

it really does work. the next thing i would like to do is to insert into the database everything that were chosen that were moved to List2[] using queries with PHP and Mysql..

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Apr 10, 2010

I have form with two dropdownlists (lets say A and B). When I select a value from A, B is being populated accordingly using AJAX In the same page I have a button, that when pressed, posts the values of the selected items of the dropdownlists to another PHP page. The problem I am having is that the selected value of B is returned as Blank/Empty. Is there a way to store the selected value of a dropdownlist populated using AJAX?

(Main FORM)
<form name="NewBar" method="post" onsubmit="return validateFormOnSubmit(this)" action="AssignContactDetailToBar_f.php">
<td width="150"><b>Bar:</b></td>
<select name = "bar" onChange="getContact('AssignContactDetailToBar_f_getContacts.php?bar='+this.value)" size = 1 style = "width:190px">

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Apr 10, 2010

I am writing the following in PHP:i would like to have 2 dropdownlists, where the second one is populated from a mySQL dB according to the choice made on the first dropdown list. Then I would like to use the values of the selected values of the dropdownlist to call another PHP page in which I will generate a db query.

List A: Car Manufactures (honda, nissan, etc)
List B: Models (accord, civic, etc)

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Apr 22, 2010

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Apr 23, 2010

code to link database selected through dropdownlist with corresponding database in mysql.Plz reply as soon as possible.Dropdownlist will list all database names inserted in a particular table

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Apr 10, 2011

Just like the title says i'm having difficulties in achieving it. Here's my dropdownlist:

$query = "SELECT data, rel_id FROM $tbl_rel_balansas INNER JOIN $tbl_balansas ON $tbl_rel_balansas.rel_id = $tbl_balansas.id WHERE $tbl_rel_balansas.member_id = '$_SESSION[id]' group by data";
$result = mysql_query ($query);
echo "<select name=data value=''>Data</option>";
echo "<option value=$nt[data] name="blabla">$nt[data]</option>";

Here's the buttonclick:


After I press it, it retrieves the data I want from the date I've chosen from the drop down list and also reset whole drop down list showing the first value of the dates from sql database, not the one I selected. If anyone knows how to keep the selected value in the list

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Jan 30, 2010

I created 3 language packs for my site: English, Spanish and French. I am just having trouble implementing them based on user selection. I have the following drop down menu:

<select onchange='document.location.href=this.options[this.selectedIndex].value;'>
<option value="?lang=eng">US English</option>
<option value="?lang=esp">Español</option>
<option value="?lang=fra">Français</option>

How can I include the language files based on what the user selects, I just don't know what to put as the condition in the if statement.

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Apr 13, 2010

i have a problem to dropdown list, i have use this url coding [URL] (download link --ajax dd) this process use two dropdownlist boxes, my problem is i want insert dropdownlist text only,but here they use get value...
how to get dropdownlist text value.

excname = dfgdg
$cat = 2(cat ddlist)-----i need text value only what to do.
$subcat = ICWA(subcat ddlist)

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Apr 19, 2011

I have 1 drop down on top of the page , and in that list the items are - today , last week.Now according to that list item-value , below that drop down list records should be displayed from the database.

dummy code
if today
records with current date should be displayed

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Dec 12, 2010

In my dropdownlist I have two different values for each option. How can I retrieve both? Let me illustrate what I mean.

<select name="my_ddl">
<option value="<?php $value_Id ?>"><?php $value_text ?></option>
<option value="<?php $value_Id ?>"><?php $value_text ?></option>

When the form is posted, I want to be able to get both the $value_id and $value_text of the selected option. How can I do this?

$_POST['my_ddl'] only gets one value not both.

In asp.net I could do this simply by referring to my_ddl.Value and my_ddl.Text.

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Jul 12, 2011

<select id="animal" name="animal">
<option value="0">--Select Animal--</option>
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I have a dropdown like this. What I want, I want to get selected value and text in button submit using PHP.I mean if it's selected 1st one. I want to get both 1 and Ca

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ive got list of reports. for default, the report list will be showing all reports without filtering. when drop down filter click, it will filter the result by name. anyidea how to fix it?

function getReportSingleMonth($month, $year, $id_user=NULL) {
$month = $db->real_escape_string($month);

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May 23, 2011

Ive been searching around here to find an answer but I cannot find one :). My issue I have 2 dropdownlist "manufacturers" and "models". This is for an aircraft directory. What I want is after the user select a manufacturer and model and click "submit", they will be redirected to a page and show the information about a certain aircraft that belongs to that certain manufacturer and model. Just for clarification, I want to show that data after the user click the submit button. I saw a lot of tutorials about getting data from the dropdownlist but all of them used "onchange" for getting and displaying the value from the dropdownlist.

here is the code:

<form name="psform" action="pistonsingle.php" method="post">
$display = displaymaincat(1);
echo $result['maincategory'];


its working. it displays the data but the problem is when the user click the submit button even he/she select a certain manufacturer or model, what my code do is just display all the aircrafts and not a certain aircraft that belong to a certain manufacturer and model.

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May 12, 2010

I have a website that loads a CSV, divides it into parts, and shows these parts. There are 7 parts, and since it is for a music store it is sliced like this:

the name of the product
the subname
the price
the stock in one shop
the stock of the other shop
the group name
the brandname

What i have now is that it shows 12 products on 1 page, with a next and previous link on top of the page. The pages are made with the group name, every group has it's own page, so you have a drums page, guitar page, speaker page. That all works great. What i programmed in there is a dropdownlist, it drops down a list of brandnames, which should narrow the search for a person who is looking at the products. Problem is right now, that the dropdown menu works, i see the brands, but they are NONE clickable, only the brands that are currently on the page are shown, so NOT all the brands from that group are shown, only the 12 that are currently showing, when you press next, it shows 12 more brands, but i want them to be shown right on the start.

And the third problem is, when it is showing the brands, it shows them double or triple, depending on how many products have the same brand. Is there a way what i want, with this code as a basis ?


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Sep 8, 2010

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Jun 6, 2011

I am working on a php ajax dropdownlist.What i am trying,When a user select january month it show 31 days similarly in march 31,april 30,may 31 n december.in feb month it should take leap year.

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How can I auto populate the data from db by dropdown selected?and my dropdown result already appear as well, the code as following:


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Mar 31, 2010

I am using javascript to populate a number of text boxes based on the data item selected in the 1st combo box. I am now working on making the selection of that combo box populate another combo box with items from another table. I can hard the sql code for the 2nd combo box so that when I select an option it populates more text boxes, but want the contents of the 2nd combo box to dynamically change depending on the selection of the 1st box. I would like this to do it without refreshing the page after each 1st combo box selection.any help would be massively appreciated as I been stuck on this for a while. The 2nd box does not populate with the below code as I guess the variable isn't populated, I can put '1' in and it selects products with that prodid, but as explained above i'd like it to read the prodid from the 1st combo box.



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Jun 23, 2010

I have two drop downlist in one view but i don't know if i can load the view passing the two arrays like this:$this->load->view('primerPaso',$data,$data2);
To be more specific i'm doing everything like this:
* Método encargado de consultar las ciudades
* donde existen agencias.
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Mar 17, 2011

I need to call to this text to add a all with value "blank/empty" or "0" to the dropdownlist code below..
it should be inserted int the first position in the dropdownlist and have a value blank and call to this text from the language files:

$searchAll = gettext('_LANGUAGE_SEARCH_ALL',_LANGUAGE_SEARCH_ALL,false,false);

example is: ratestitle=>0 gettext('_LANGUAGE_SEARCH_ALL',_LANGUAGE_SEARCH_ALL,false,false); the words it calls is "ALL" when the user selects or leaves the "ALL" in the list the value remains empty this allows the search to search everything.. basically im stuck how to get it in the dropdown list as the first default position:

here is my code://this is a search function which calls to the field rate_title the text from the select box is matched to the database table and the search pages shows the search option is the search is successful.. I have 5 of these types of searches but cant give a broader search option to my users as the values must be selected to search--- i need the option "ALL" to have a "EMPTY" value or no value....


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Dec 28, 2009

I have two dropdownlist boxes. If I click on the first dropdown box, then the values have been changed in the second listbox accordingly to first listbox. For example: One is Fruits,vegetables,Birds. If i click on the Fruits then it shows the fruit list items in the second list box. It is same for other list also. Please send me the result through mail.

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Sep 11, 2009

Actually i am working in a bidding project.

I need to populate a check box dynamically when the drop down box value is selected. the check box value must be displayed according to the values in drop down box.

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Jun 28, 2011

I am trying to extend shipping method with respect to cities.

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I need to query two tables using two combo boxes. The tables are of this type : author/publications , brand/products ..etc..

Whenever I chose a value in the first ComboBox , the second one should be populated based on the value chosen in the first one.

The first combo box is populated, so I can tell that nothing is wrong for the first combo box code. however, when i try to change it's value nothing happens , "the scond one is not populated".

I don't know what is the problem.. Maybe it is a mistake to pass javascript variable to php using IEwindow.location.href ?!. If it is a mistake ,then how can i pass javascript variable to php variable?? Code:

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Sep 2, 2010

I want populate combo box based on another combobox selection in php.for eg: If we select 'tamilnadu' in one combobox then tamilnadu district are displayed in another combobox. If you know send that coding.

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Mar 22, 2011

I have a form where employees enter vehicle information which is then added to the database and displayed on the site. The form is obviously extensive including many fields where the employee can enter details about the vehicle.I want to implement a "common entry" system to increase efficiency for filling out the form. The employee would be able to choose a common entry (almost like a template) and the script would populate the form according to that common entry.

For example:

If the dealer gets 10 new Dodge Charger's in stock, the employee could open the form to add units and select "2011 Dodge Charger" as a common entry. The rest of the form would auto-populate based on the standard features of that vehicle rather than having to go down the form and enter every field manually 10 times.My idea is to just create another table with the fields entered as they should be, grab that data and fill out the form accordingly.I would like to implement AJAX (which I have working with a little) to make it more user friendly.

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Sep 11, 2006

Is there a way to populate a form based on a choice made by selection box? I don't want the page to be reloaded, and I'm not sure how to do it with javascript.

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Feb 1, 2011

Say we have a form field and want to populate it with a images based on two other fields. Say these are called COLOUR and STYLE. So if style is 'A' and colour is black, we want to display the unique image representing these choices. If style is 'B' and colour black, another image.

So what is missing from the following?:

add_filter("pre_render", "populate_dropdown");

function populate_dropdown($form){

if($form["id"] != 1)[code].....

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Nov 4, 2009

I have a form, and there are 5 fields. The first field is an autocomplete field. I'd like to have the other 4 fields populated based on the autocomplete field selection. The docs in github ajax.autocompleter page reference setting an id and using a js function to call the id value, but this doesn't seem efficient if using multiple fields/need multiple values in addition to the ac value.

I'm using scriptaculous, and php. I have the autocompleter functioning, but am not sure on the rest of it. I'm also not clear on how to set the additional field parameters on the php end. I suppose that I could set the id="field1Val='blah'&field2Val='blah2'" then use js to parse and populate fields, but something about that just doesn't feel right.

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Nov 21, 2010

I'm trying to populate a drop down list box based on array contents. The first option must be associated with the 1 value. What's the problem with the following code?

PHP Code:


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Mar 9, 2010

I am not too good on php and MYSQL and I am currently struggeling with populating a form on my website based on a selection chosen by the user from a drop down menu. The drop down menu is dynamic with its values populated from a database. Below the menu is a form that has two functions which are:

1. It allows the user to write information to the database.
2. Allows the user to view and edit records from the database.

The data held in the drop down menu is the the title of the record, and when a new record is added to the database it automaticalty gets added to the menu. The problem comes with when the user choses an option from the menu as the form needs to display the corrasponding data but I dont know how to do this. For example, if JAN is chosen from menu the form should be repopulated with the data input by the user for that record.

So far the code I have is:
// Database Connection
mysql_connect("www.numyspace.co.uk", "unn_s013370", "********")or die("connect");
mysql_select_db("unn_s013370")or die ("cannot select DB");


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Jul 4, 2011

I am trying to populate a textbox based upon the selection of a dropdown box. The dropdown box contents are retrieved via PHP from my mysql database.

The dropdown box lists all the 'counties' in the UK. Once selected I would like a text box to display the matching 'region' that 'county' is in - without a submit. However, if this is not possible (or overly complex) - it is not essential to display the associated 'region' at all as long as onsubmit the 'region' is fired to a further database that is storing all the form submissions - this is with a view that that database can be searched by 'region'. The MYSQL 'county_regions' table contains just three fields - 'CountyID', 'County' and 'Region'. I have looked at javascript and due to the amount of 'counties' this seems to be the wrong way to go so would love a php solution.

Here is the selection of code at the moment.

$link = mysql_connect('host', 'username', 'password') or die('Could not connect: ' . mysql_error());
mysql_select_db('databasename') or die('Could not select database');
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Apr 14, 2009

First of all, let me give you the layout. We have a Streaming Video Site using PHPmotion. That in itself contains a Database (as I'm sure you know) Now PHPmotion itself is our backend. Nobody sees the frontend of the site, all they see is the embedded videos. That being said, I have pulled some data from the PHPmotion_Videos table into another website that I am building. I have been successful in populating a dropdown box with the "channel" field, but now what I want to do is dynamically populate the rest of the page with the... we'll say 10 most recent videos from that "channel".

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Jun 18, 2010

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Sep 7, 2010

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$low = "Low";
$int = "Intermediate";
$high = "High ";
switch($perm) {
case $perm == $low: echo "Low perm <br>"; break;
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I have tried giving the options numerical values, however, when i retrieve the results they are still strings so comparint $perm == 1, 2, or 3 just prints the default message.

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Jul 1, 2010

I am working in the confines of a CMS system, which defines certain fields which can be used to make forms for use within the application in PHP.

The list function has the signature:

function inputBasicList ($id,$value = "",$list = array(), $displayName = NULL, $displayLabel = true)

I use it thusly:

$theinput = new inputBasicList("type",$therecord["paymenttype"],array("Cash"=>"cash","Credit"=>"credit"), "Payment Type");


I use it thusly

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What I would like to do, is if the list is set to credit instead of the default cash, to automatically set the checkbox to true/checked.

I dont think the CMS system allows a way to do this using any built in functions, and am wary of adding any javascript.

Is such a thing possible with just PHP?

Otherwise, how complicated would the javascript have to be to do such a thing?


The generated HTML from the phpBMS forms

<p class="big"><label for="type" class="important">Payment Type</label>
<br />
<select name="type" id="type" class="important" >
<option value="cash" >Cash</option>


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