How do I post button value to PHP?

Question

I want use AZ buttons on a html page like shown below (only sample and few words)

<INPUT TYPE="BUTTON" VALUE=" A " ONCLICK="A">
<INPUT TYPE="BUTTON" VALUE=" B " ONCLICK="B">
<INPUT TYPE="BUTTON" VALUE=" C " ONCLICK="C">
<INPUT TYPE="BUTTON" VALUE=" D " ONCLICK="D">
<INPUT TYPE="BUTTON" VALUE=" E " ONCLICK="E">
<INPUT TYPE="BUTTON" VALUE=" F " ONCLICK="F">
<INPUT TYPE="BUTTON" VALUE=" G " ONCLICK="G">
<INPUT TYPE="BUTTON" VALUE=" H " ONCLICK="H">
<INPUT TYPE="BUTTON" VALUE=" I " ONCLICK="I">
<INPUT TYPE="BUTTON" VALUE=" J " ONCLICK="J">

when I click on each button I want to post respective values on button to a PHP variable.

How can I do this?

Answer 1

Change the type to submit and give it a name (and remove the useless onclick and flat out the 90's style uppercased tags/attributes).

<input type="submit" name="foo" value="A" />
<input type="submit" name="foo" value="B" />
...

The value will be available by $_POST['foo'] (if the parent <form> has a method="post" ).

Answer 2

Give them all a name that is the same

For example

<input type="button" value="a" name="btn" onclick="a" />
<input type="button" value="b" name="btn" onclick="b" />

Then in your php use:

$val = $_POST['btn']

Edit, as BalusC said; If you're not going to use onclick for doing any javascript (for example, sending the form) then get rid of it and use type="submit"

Answer 3

As Josh has stated above, you want to give each one the same name (letter, button, etc.) and all of them work. Then you want to surround all of these with a form tag:

<form name="myLetters" action="yourScript.php" method="POST">
<!-- Enter your values here with the following syntax: -->
<input type="radio" name="letter" value="A" /> A
<!-- Then add a submit value & close your form -->
<input type="submit" name="submit" value="Choose Letter!" />
</form>

Then, in the PHP script "yourScript.php" as defined by the action attribute, you can use:

$_POST['letter']

To get the value chosen.

Answer 4

Keep in mind that what you're getting in a POST on the server-side is a key-value pair. You have values, but where is your key? In this case, you'll want to set the name attribute of the buttons so that there's a key by which to access the value.

Additionally, in keeping with conventions, you'll want to change the type of these input s (buttons) to submit so that they post their values to the form properly.

Also, what is your onclick doing?

Answer 5

Using input tag is going to leave the mark on the page. Trying button tag will show the button and also can send the value as well.

<button type="submit" value="the value you want" >Update</button>

Answer 6

use as: button type="submit" value="A" name="btn" input type="submit" value="B" name="btn" when you will post data use: $_REQUEST['btn'];

Answer 7

    $restore = $this->createElement('submit', 'restore', array(
        'label' => 'FILE_RESTORE',
        'class' => 'restore btn btn-small btn-primary',
        'attribs' => array(
            'onClick' => 'restoreCheck();return false;'
        )
    ));