Passing db data to end of a url in PHP

The root problems here are: the query result was never checked before calling fetch, multiple separate SELECTs were used when one will do, and output was not escaped or URL-encoded. @JayJ saw the fetch warning because the query returned false; @hakimkal was on the right track about fetching and looping, and @sikka_varun attempted a fix but ran three separate queries and printed unquoted HTML — all fragile patterns. The long-term fix is to use a single safe query, check for errors, URL-encode the filename for a path segment, and HTML-escape the link text.

Example using PDO (safer than the old mysql extension):

<?php
$pdo = new PDO('mysql:host=localhost;dbname=yourdb;charset=utf8mb4','user','pass',[
  PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
]);

$stmt = $pdo->query('SELECT log_filename, log_issue, log_month FROM uploads_log');
while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
  $path = rawurlencode($row['log_filename']);
  $label = htmlspecialchars('Issue ' . $row['log_issue'] . ', ' . $row['log_month'], ENT_QUOTES, 'UTF-8');
  echo '<a href="https://example.com/uploads/' . $path . '">' . $label . '</a>';
}

Troubleshooting tips: if you see "supplied argument is not a valid MySQL result resource", the SQL failed — check the exact error (use exceptions or mysqlerror during debugging) and verify the connection and table/column names. Prefer prepared statements when inserting dynamic input into queries. Use rawurlencode for path segments (not urlencode), and always wrap attribute values in quotes and escape output with htmlspecialchars to avoid XSS. The old `mysql*` functions are deprecated/removed; migrate to PDO or mysqli (PDO docs, mysqli docs). For encoding and escaping see rawurlencode and htmlspecialchars.