Submitting a Form to a PHP function

[Squiggles]

Question:

Is it possible to submit a form to a function within a page? If so, how is it done?

[jerdo]

Yes it's possible. If you don't understand how to do functions you might have a hard time though. However, if you do understand functions it really easy.

[acidbox]

basically, when u submit the form, just send a hidden variable such as this:

<form method="post" action="<? echo($php_self); ?>">
<input type="hidden" name="mode" value="function">

then, when you submit the form, the page will refresh the variable "mode" will be set.

So, now, you just do an if statement like this:

if ($mode == "function") {
    functionname();
}
else {
    //run the rest of the page, or the form, or whatever
}

[Squiggles]

Thanks guys, but what I had in mind was passing the form to another file containing the function to be processed. Does it work the same?

[Weedpacket]

Yes; submit the form to the page as ever, then in that page call the function

<form action="page.php" method="GET">

page.php:-----------------
function process()
{.....something involving $_GET[]
}

process();

[Squiggles]

Thanks Weedpacket. My concern though is this:

I have several forms to build. What I want to happen is that it submits itself to only one processing page that is divided to different functions.

As such:

form1:---
$var1;
$var2;

$var3;

form2:---
$var4;
$var5;

$var6;

processform.php:---
function form1()
{

}

function form2()
{

}

form 1 submits to processform.php, but only to use function form1();.

form 2 submits to processform.php, but only to use function form2();.

[diego25]

Just have a hidden field in both forms, telling which function it should run:

<input type="hidden" name="formNum" value="one" />

and then in your PHP script:

if (isset($POST['formNum']) && $POST['formNum'] == "one") {
form1();
}

Diego

[Weedpacket]

As an alternative to diego25's suggestion, give each Submit button a different name (one that describes its form's function, perhaps), and then see if $_POST['that name'] isset. No big difference - just avoids having an extra form field, and since the submit button's value (default "submit") is being passed anyway...

[Squiggles]

Thanks guys. I'll try it out... I'll get back to you if something comes up... 🙂