Mandatory Fields

[joshcxa]

How do I make an alert popup when a required field isn't filled in.
At the moment, info from my forms get sent even if the required fields aren't filled in.

[webmaster]

[php]<?php if($_POST['feildname] == "") {
echo "Your forgot to enter something in feildname";
}
?>[/php]

[joshcxa]

cool thanks..
does that bring up an alert box?

[webmaster]

No it only shows the text: You forgot to enter something in fieldname.

But just change what it should echo, you can add html code in there to.

[joshcxa]

so i can chuck javascript in the echo?

[ReFredzRate]

Yes, as far as I know the PHP will be compiled, outputting pure HTML. So if you chuck HTML/Javascript/whatever in it, it will be treated the same way as you were coding a page in plain HTML or Javascript.

[webmaster]

And to make it even easier you can end the php, write the javascript as you want and then start the php again. Like this:

[php]<?php if($_POST['feildname] == "") { ?>
Standard HTML or Javascript here!
<?php
}
?>[/php]

[joshcxa]

but the info will still send though...how do i stop that?

[webmaster]

If you set the name on the submit-button to: hello

[php]<?php

if(isset($_POST['hello'])) {
if($_POST['url'] == "") { ?>
You forgot the enter something in the url-field
<?php
} elseif($_POST['mail'] == "") { ?>
You forgot the enter something in the mail-field
<?php
} else {
echo "The url is: " . $_POST['url'] . " and the mail is: " . $_POST['mail'];
}

} else { ?>

<form method......
........................
........................
</form>

<?php
}
?>[/php]