$_POST behavior from input=submit vs input-type=button

[Victor A. Cuya]

Hello all,

I have been trying to solve an annoying behavior with PHP (I think).
Maybe some of you have encountered the same and have some ideas.

I have an html form and I use an <input type="button"> element with
the onClick event that calls a javascript funtion. Once the script's
content has been processed, I execute the form.submit() directive.

I would like to combine the html form and the PHP script into one, and
use action="<?php echo($PHP_SELF) ?>".

When the html form has <input type="button" name="theButton"
value="thisisthetrigger" onclick="doThis(this.form)">but PHP cannot
'read' the value of $_POST["theButton"] after form.submit().

If I substitute the <input type="button"> for <input type="submit">
then PHP reads the value just fine. Some may argue to just use the
latter option, but that will cost me a trip back to the server to
basically do a lot of validation that can be very easily accomplished
on the client side.

Any suggestions will be greatly appreciated.

[S Austin]

use the input type=submit, move the button event to the form i.e., <form
onsubmit="doThis(this)"

Victor A. Cuya wrote:

> Hello all,
>
> I have been trying to solve an annoying behavior with PHP (I think).
> Maybe some of you have encountered the same and have some ideas.
>
> I have an html form and I use an <input type="button"> element with
> the onClick event that calls a javascript funtion. Once the script's
> content has been processed, I execute the form.submit() directive.
>
> I would like to combine the html form and the PHP script into one, and
> use action="<?php echo($PHP_SELF) ?>".
>
> When the html form has <input type="button" name="theButton"
> value="thisisthetrigger" onclick="doThis(this.form)">but PHP cannot
> 'read' the value of $_POST["theButton"] after form.submit().
>
> If I substitute the <input type="button"> for <input type="submit">
> then PHP reads the value just fine. Some may argue to just use the
> latter option, but that will cost me a trip back to the server to
> basically do a lot of validation that can be very easily accomplished
> on the client side.
>
> Any suggestions will be greatly appreciated.
>

[sma1king]

"Victor A. Cuya" <vcuya@mindspring.com> wrote in message
news:5mm1a01pbjccljape5j0j4qsp3bea64pl4@4ax.com...

> Hello all,
>
> I have been trying to solve an annoying behavior with PHP (I think).
> Maybe some of you have encountered the same and have some ideas.
>
> I have an html form and I use an <input type="button"> element with
> the onClick event that calls a javascript funtion. Once the script's
> content has been processed, I execute the form.submit() directive.
>
> I would like to combine the html form and the PHP script into one, and
> use action="<?php echo($PHP_SELF) ?>".
>
> When the html form has <input type="button" name="theButton"
> value="thisisthetrigger" onclick="doThis(this.form)">but PHP cannot
> 'read' the value of $_POST["theButton"] after form.submit().
>
> If I substitute the <input type="button"> for <input type="submit">
> then PHP reads the value just fine. Some may argue to just use the
> latter option, but that will cost me a trip back to the server to
> basically do a lot of validation that can be very easily accomplished
> on the client side.
>
> Any suggestions will be greatly appreciated.

Dear Victor,

I think you may be stuck. Take a look at Alan Flavell's comments on this
issue in [url]http://ppewww.ph.gla.ac.uk/~flavell/www/trysub.html[/url]

George