Calling PHP Functions from HTML forms

Evil Phil

Lo, entirely new to PHP etc.


Rightio I´m trying to call a PHP Function from an HTML Form. It subscibes to a mailing list.

So heres a rough idea of what I´ve being trying*



[PHP]
<?php

function signup()
{
....
}

?>

[/PHP]

<form name=Email method=POST action=(read below)>
<input type=text name=Email_addr value=\"Your_email_address\">
<input type=submit name=\"Email_submit\" value=Submit>

So what I really want to know is if I can call the function signup() from the Action value in the form tag**? and if so how is it done***?




*Typos may be present as this isn`t the actuall code believe it or not.
**I´ve already googled. A simple Yes or No will be enough.
***Flamage to somebody who actually gives a damn****
****to be taken lightly and in good humor

seamus

Haven't looked at PHP in a few months......but I think if you call

action=$PHP_SELF

Which will reload your page, with the form variables set, then you can call signup().

And set a value like:

<input type=hidden name="submitPressed" value="1">

in the form.

Then you can call

if (submitPressed) {
signup()
}


...................

Evil Phil

Thanks Seamus, I´ll have a look at doing it that way.:)

The Corinthian

Originally posted by seamus
And set a value like:

<input type=hidden name="submitPressed" value="1">

in the form.

Better to do check if the page/script has been accessed via HTTP POST or GET for this purpose rather than using hidden fields:
[PHP]
<?php
if (count($HTTP_POST_VARS) > 0) {
// Process the form variables and subscibe user to the mailing list
signup($Email_addr);
} else {
// Show HTML Form
?>
<form name=Email method=POST action=$PHP_SELF>
<input type=text name=Email_addr value=\"Your_email_address\">
<input type=submit name=\"Email_submit\" value=Submit>
</form>
<?
}

function signup($email) {
....
}
?>
[/PHP]