DEBUG /tags.php
=================

RAW $_GET['tag']:
string(5) "index"

Trimmed $tag:
string(5) "index"

Normalized $tagNorm (lower+trim):
string(5) "index"


Probe SQL (news):
SELECT id, article_title, tag1, tag2, tag3, tag4, tag5
FROM news
WHERE LOWER(TRIM(tag1)) = ?
   OR LOWER(TRIM(tag2)) = ?
   OR LOWER(TRIM(tag3)) = ?
   OR LOWER(TRIM(tag4)) = ?
   OR LOWER(TRIM(tag5)) = ?
ORDER BY id DESC
LIMIT 10;

Rows Found: 4

Array
(
    [0] => Array
        (
            [id] => 19371
            [article_title] => Rammstein album no longer indexed in Germany
            [tag1] => Rammstein
            [tag2] => Germany
            [tag3] => Index
            [tag4] => Ich Tu Dir Weh
            [tag5] => Liebe Ist Fur Alle Da
        )

    [1] => Array
        (
            [id] => 17679
            [article_title] => New troubles for Rammstein with the German censors
            [tag1] => Rammstein
            [tag2] => index
            [tag3] => germany
            [tag4] => censorship
            [tag5] => ich tu dir weh
        )

    [2] => Array
        (
            [id] => 17256
            [article_title] => Rammstein drummer comments to The Gauntlet regarding the album being censored in Germany
            [tag1] => Rammstein
            [tag2] => Christoph Schneider
            [tag3] => index
            [tag4] => Germany
            [tag5] => Liebe Ist Fur Alle Da
        )

    [3] => Array
        (
            [id] => 17245
            [article_title] => Rammstein to re-issue Liebe Ist Fur Alle Da in Germany
            [tag1] => Rammstein
            [tag2] => Germany
            [tag3] => Ich Tu Der Weh
            [tag4] => index
            [tag5] => Liebe Ist Fur Alle Da
        )

)


Extra sanity checks:
Distinct tag1 values containing substring:
Array
(
    [0] => Array
        (
            [tag_value] => misery index
            [c] => 6
        )

)