Major Strpos Failure

[MDCode]

Ok so I've recently added strpos checking. I got username to work, added more names to check, check first name and last name too, etc. Anyways, It's not working anymore

 

<?php

$firstname = mysql_real_escape_string(htmlentities($_POST['firstname']));

$lastname = mysql_real_escape_string(htmlentities($_POST['lastname']));

$username = mysql_real_escape_string(htmlentities($_POST['username']));

$password = mysql_real_escape_string(htmlentities($_POST['password']));

$confirm = mysql_real_escape_string(htmlentities($_POST['confirm']));

$email = mysql_real_escape_string(htmlentities($_POST['email']));

// prohibited words
$words = array("1", "2", "3", "20 more after this");

// check if username contains prohibited words
if(strpos("$username", "$words")) {
$errors = "<font color='red'>* Username contains prohibited words</font><br>";
}

// check if first name contains prohibited words
if(strpos("$firstname", "$words")) {
$errors = "<font color='red'>* First name contains prohibited words</font><br>";
}

// check if lastname contains prohibited words
if(strpos("$lastname", "$words")) {
$errors = "<font color='red'>* Last name contains prohibited words</font><br>";
}
?>

 

No errors but it seems to not be checking right anymore as the errors do not display. I have not touched anywhere below this section of filtering; every other filter is working right, so display isn't an issue

 

Any help would be appreciated!

[-Karl-]

if(strpos($username, $words)) {
$errors = "<font color='red'>* Username contains prohibited words</font><br>";
}

 

 

Etc, you don't need quotes, otherwise it looks for the string, not the variable.

Edited October 24, 2012 by -Karl-

[MDCode]

Without the quotes I get an error saying it's not a string

[-Karl-]

Okay, just use in_array() instead:

if(in_array($username,$words)) {
$errors = "<font color='red'>* Username contains prohibited words</font><br>";
}

 

If that returns an error it must be something to do with what you're passing through to the variables.

Edited October 24, 2012 by -Karl-

[MDCode]

woot, tyvm. Never heard of in_array() major fail on my part it seems

[-Karl-]

Aye, that's a lot of useful functions that hide away in the PHP docs!