Suppress connection errors in log

Author: jmechnich

isbn/dnb.php

@@ -47,7 +47,7 @@
     $suchString = 'dnb.num=' . implode('+OR+dnb.num=', $nArray);
 }
 
-$result = file_get_contents($urlBase . $suchString, false);
+$result = @file_get_contents($urlBase . $suchString, false);
 
 if ($result === false) {
     header('HTTP/1.1 400 Bad Request');

isbn/verkaufsinfo.php

@@ -188,8 +188,8 @@
 
 if (!isset($cover)) {
     $urlOpenlibrary = 'https://covers.openlibrary.org/b/isbn/' . $n13 . '-M.jpg';
-    $headerOpenlibrary = get_headers($urlOpenlibrary, 1);
-    if (!strpos($headerOpenlibrary[0], '404 NotFound')) {
+    $headerOpenlibrary = @get_headers($urlOpenlibrary, 1);
+    if ($headerOpenlibrary !== false && !strpos($headerOpenlibrary[0], '404 NotFound')) {
         $cover = $urlOpenlibrary;
         $coverOrigin = 'https://openlibrary.org/isbn/' . $n13;
     }