Invalid argument supplied for foreach()

[dougl]

I'm running PHP 4.4.1. Getting Invalid argument supplied on the foreach() statement from the excerpt below:

$res = mysql_query("SELECT data FROM simbands
WHERE song = " . $lyric["lyrics_id"]) or die(mysql_error());

if (mysql_num_rows($res) > 0)
{
$rec = mysql_fetch_array($res);
$bands = unserialize($rec["data"]);
}

foreach($bands as $key => $val)
{
print ("<a href = \"" . $val["band_file"] . ".htm\">" . $val["band_name"] . "</a><br />");
}

This worked on PHP 4.3.11.

Any suggestions will be appreciated.

Thanks

[sneakyimp]

'invalid argument supplied' on a foreach() call means that in this code:

foreach($bands as $key => $val)
{
print ("<a href = \"" . $val["band_file"] . ".htm\">" . $val["band_name"] . "</a><br />");
} 

$bands is not an array. you should probably add some logic to check what you get out of the database or to make sure that $bands is in fact an array.