Checking for user groups

[Laajo]

I need to use the $_SERVER["REMOTE_USER"] varible and .htgroup file and check to which of three groups the user belongs.

I tried:

<?php

$user = $_SERVER["REMOTE_USER"]; 

$groups = file ('/home/.htgroup');

$redgroup = explode(" ", $groups[0]);
$yellowgroup = explode(" ", $groups[1]);
$greengroup = explode(" ", $groups[2]);

if (in_array ($user, $redgroup)) {
		print "Got $user in red";
}

if (in_array ($user, $yellowgroup)) {
		print "Got $user in yellow";
}

if (in_array ($user, $greengroup)) {
		print "Got $user in green";
}

?>

Unfortunately it doesn't seem to work that well... It seems that php won't accept that $redgroup, $yellowgroup and $greengroups are arrays. (They are, aren't they?) Because if I define them by writing
$redgroup =array ("John", "Mike", "Peter",);
then the in_array function works fine.

Any ideas as to what I'm missing?

Thanks,
Laajo

[TTT]

semms that you have to prepare array first
$redgroup = Array();

i don't know did i get this right but i think you can also do:
$groupArray = Array();

$query = select id,name from table

for($i=0;$i < ,{count of groups}; $i++)
{
for($a=0;$a < ,{count of fields}; $a++)
{
$grouparray[$i][$a] = odbc_result($query,$a);
}
}

after that you can check, if array[0][$x] exist

[killerbishop]

What happened when you did:

print_r($redgroup);
print_r($yellowgroup);
print_r($greengroup);

Were the arrays empty? Are you sure the .htgroup file is in the form:

group1 group2 group3
group4 group5
group6