sojweb

It’s in wp-includes/query.php on lines 1739-1762:

// If a search pattern is specified, load the posts that match
if ( !empty($q['s']) ) {
	// added slashes screw with quote grouping when done early, so done later
	$q['s'] = stripslashes($q['s']);
	if ( !empty($q['sentence']) ) {
		$q['search_terms'] = array($q['s']);
	} else {
		preg_match_all('/".*?("|$)|((?<=[\\s",+])|^)[^\\s",+]+/', $q['s'], $matches);
		$q['search_terms'] = array_map(create_function('$a', 'return trim($a, "\\"\'\\n\\r ");'), $matches[0]);
	}
	$n = !empty($q['exact']) ? '' : '%';
	$searchand = '';
	foreach( (array) $q['search_terms'] as $term) {
		$term = addslashes_gpc($term);
		$search .= "{$searchand}(($wpdb->posts.post_title LIKE '{$n}{$term}{$n}') OR ($wpdb->posts.post_content LIKE '{$n}{$term}{$n}'))";
		$searchand = ' AND ';
	}
	$term = $wpdb->escape($q['s']);
	if (empty($q['sentence']) && count($q['search_terms']) > 1 && $q['search_terms'][0] != $q['s'] )
		$search .= " OR ($wpdb->posts.post_title LIKE '{$n}{$term}{$n}') OR ($wpdb->posts.post_content LIKE '{$n}{$term}{$n}')";

	if ( !empty($search) )
		$search = " AND ({$search}) ";
}

I think, though, you’d be better off using a filter or something.

The quick way around the problem would be to just test that those variables are arrays before they’re used like that:

if(is_array($cp_categories))
{
foreach ( $cp_categories as $b ) {
// ...code here...
}
}

if(is_array($postcat))
{
$postcat = array_slice($postcat, 0, 5);
}

if(is_array($postcat))
{
foreach ($postcat as $cp_pC ) { ?>
...code here...
}

However, that’s just a workaround, better would be to rewrite the code elsewhere to ensure that those variables are always arrays.

If you put the information on your site somewhere and link to it, it will be indexed, assuming it’s not blocked by a robots.txt file, meta tag, or rel=nofollow attribute in the link.

Consider putting up a pre-filtered page, maybe one with a complete list of the information.

That’s almost certainly a theme or plugin problem; it’s the closing tag for PHP code. Probably there is a syntax error somewhere in the theme or plugin files. Ideally you should be able to see any error logs that PHP generates that would help you pinpoint the problem. Failing that, you’d just have to play with the code to see if you can find it.

If you made any changes recently, undo them to see if the problem goes away.

I’m not terribly familiar with any, but maybe there’s something here that can help: http://lorelle.wordpress.com/2007/02/07/wordpress-plugins-for-images-photographs-and-graphics/

There’s no simple way to do this; WordPress wasn’t built to be a file manager. While you can protect posts and pages, once a file is uploaded, it’s public. The user only needs to know the path to be able to get it. If you only have simple spreadsheet needs, you might checkout http://docs.google.com/. There, you can set up different spreadsheets and manage who has access to what.

the_title(), by default, echoes, and doesn’t return, the title text. For strip_tags() to work, it has to return the string. Try this:

<?php echo strip_tags(the_title('','',FALSE)); ?>

However, WordPress provides a function just for what you’re doing: the_title_attribute()

Reference:
http://codex.wordpress.org/Template_Tags/the_title_attribute
http://codex.wordpress.org/Template_Tags/the_title