populate a text box from drop down.

[vinaysnarayan]

Hi,

 

I'm new to php, but however, I can manage small changes.

 

I've a small html/java script. I want to achieve the same through php.

Please help, how can I do this.

 

create a new html file, copy the below script, save the file and run it in a browser. I want to get the same results using a php file. Please help me how to do this. Thanks in advance.

 

Note: The below code outputs data on a textarea box. However, is it possible to get the output on a texbox instead of a textarea box?

 

 

<script type="text/javascript">

function addItem(itemValue,outputDestination){

formElement = document.forms['myForm'].elements[outputDestination]

tempVar = formElement.value

if (tempVar.lastIndexOf("\n") != tempVar.length-1){

}

 

formElement.value = itemValue;

 

}

</script>

 

<form name="myForm" id="myForm">

<select onchange="addItem(this.value,'textOutput2')">

<option value="A1">A1</option>

<option value="A2">A2</option>

<option value="A3">A3</option>

<option value="B1">B1</option>

<option value="B2">B2</option>

<option value="B3">B3</option>

<option value="C1">C1</option>

<option value="C2">C2</option>

<option value="C3">C3</option>

</select>

 

 

<textarea style="displaynone;" name="textOutput2" cols="10" rows="1"></textarea>

<br />

 

</form>

 

Regards,

Vinay

[jackpf]

No. PHP is server side.

[vinaysnarayan]

Hi Jackpf,

 

Thanks for your reply. But how to get this done through php? Any code for this?

 

Thanks,

Vinay

[.josh]

You can't.  php is a server-side language.  It cannot dynamically change elements in a browser on a client.  That's what client-side languages are for.  Like javascript.

[jackpf]

No...I mean...PHP is server side. It cannot be done through php. That's probably why it's written in Javascript.

 

You could do something like if you select an item and submit the form, PHP can do something like this:

 

<?php
echo '<form action="" method="post">
<select name="select">
<option>value1</option>
<option>value2</option>
</select>';
$select= $_POST['select'];
echo '<input type="text" name="something" value="'.$select.'" />
<input type="submit" />
</form>';
?>

 

Try it out and you'll see what I mean. But javascript is much more suited to the task. Why do you want to change it anyway?

[vinaysnarayan]

Oh ok. But if that is the case, how to get this done? Can this be done in Java/html ? any other method to get this done?

Thanks for your time and post in advance.

 

-Vinay

[jackpf]

What's wrong with the code you had in the first place?

[vinaysnarayan]

Ok. Let me give you more details what I want to do.

 

Please see the attached file - mqform1.php.  When I run this in a file in a browser, I get a form, where I can submit information to the database.

The fields - Region - Environment - Server are 3 level drop down menu. This will be populated only when the corresponding parent is selected. However, after I click the 'Save Data' button, I want the data contained in each drop down (after selection) to be populated to the corresponding text box next to it. Can any one please help me on this?

 

Thank you very much in advance.

 

-Vinay

 

[attachment deleted by admin]

[.josh]

So you want to take values from other elements, click a button, and have another element get populated with those values?  Yes we heard you the first time.  And the 2nd.  What part of "php cannot do this" do you not understand?

[vinaysnarayan]

Sorry for any inconvenience caused. Please dont be angry on me as I'm very new to php.

 

jackpf has posted a code, above in this thread. It just works perfectly fine. If i select a value from a drop down and click the button, the text box gets populated. I want to do the same for the mqform1.php i sent you.

 

I'm stuck up and dont know how to do it.

 

Regards,

Vinay

[nankoweap]

let me ask a question... why? i mean, what value-add to the application/user is there by doing this? seems like each parent list will display the chosen value already. duplicating the value in a textbox is redundant.

 

and btw... you can't do this in php. that is, unless the form's submitted to the server each time a parent's selected item changes. if so, then it's just a matter of determining the selected value and setting the default value of a text field accordingly.

 

jason

[jackpf]

Well, you're script appears to be copied, as i don't really believe you know OOP if you're a beginner. I would recommend writing your own script as you're not going to learn PHP by copying.

 

And javascript could do it like this

function populate_something_else(element1, element2)
{
document.getElementById(element2).value = document.getElementById(element1).value;
}

 

But I am unsure what benifits this will incur, as you already have the value in element1. Why not just post that instead?

[vinaysnarayan]

I have two different tables - A and B in the mysql database. The values for Region, Environment, Server are stored permanently in table A and will not be changed. When I select these values, fill up the form and click save data, I want the complete values (including Region, Environment, Server) to be stored in the corresponding columns in table B.

 

This is what i'm trying to achieve.

 

Regards,

Vinay

[vinaysnarayan]

jackpf,

 

Indeed i'm new to php, as mentioned by my initial email. I've downloaded some GPL scripts and trying to modify them according to my needs.

 

Regards,

Vinay

[jackpf]

Why not just insert the data into both tables then? I'm not sure I understand...

[vinaysnarayan]

When the user clicks 'Save Data', a new form should pop up with the values selected in the mqform1.php.

At the bottom of this page, I have a 'Confirm' Button. This form - lets say form2 - values in this will be read only and just a 'Confirm' button. Once clicked, it should update the columns in table B.

 

In this form2, all the field should be read only text boxes, with the values selected in the previous editable form.

 

Also, I'm not inserting both the tables. I'm inserting only to table B depending on the values selected from table A for region, env, and server and the remaining values from mqform1.php.

 

Please let me know if you need any further information.

Thanks in advance,

-Vinay

[jackpf]

function populate_something_else(element1, element2)
{
document.getElementById(element2).value = document.getElementById(element1).value;
}

 

Why not use that to migrate the data across from the first form to the second?

[vinaysnarayan]

Oh ok. Let me try this and get back to you. thank you for your advice.

 

Regards,

Vinay

[vinaysnarayan]

Hi jackpf / anyone,

 

I'm not a coding guy. I'm from system administration. Can any one help me to get this done either through java / dhtml / php any thing.

I just need to submit this by end of this week. Thanks in advance.

 

If this cannot be done, thank you every one for your kind support, time and replies you sent me.

 

Warm Regards,

Vinay S

[jackpf]

What's wrong with the code I sent you?

[vinaysnarayan]

Hi Jackpf,

 

I dont know how to use the code you gave in the attached file (mqform.php) i sent you. I searched for a variable, where the value of each drop down selected would be stored. But I could not identify where exactly I can get that value.

 

Also, I dont know where to insert the function code snippet you gave and where to write the function call.

I lose the challenge, jackpf.

 

I thank you very very much for your kind help you gave me.

 

Regards,

Vinay

 

 

[jackpf]

Ok, say you have this:

 

<input type="text" id="element1" />
<input type="text" id="element2" />

 

And you want to put the value of element 1 into element 2.

 

You can then use this:

 

function populate_something_else(element1, element2)
{
document.getElementById(element2).value = document.getElementById(element1).value;
}

 

Like this:

 

<input type="text" id="element1" onkeydown="populate_something_else('element1', 'element2');" />
<input type="text" id="element2" />

 

With that, whatever you type in the first input should appear in the second input as you type it.

[vinaysnarayan]

Hi Jackpf,

 

Thank you again. I understood the code. I can implement the code you gave. But I dont know where in the mqform.php, I can get the value of element1 (first drop down in my case).

 

The code is so complicated that, I cannot identify the variable where exactly the value will be stored, after I do the selection in the drop down.

 

-Vinay

[jackpf]

I'm not entirely sure what you mean.

 

If this code is so complicated for a simple register script, maybe you should consider rewriting it. A register script shouldn't be that hard.