add P-n to URL automatically, and be able to deal with only 1 page

config.php.sample

@@ -1,15 +1,9 @@
-;<?php
+;<?php die(); ?>
-;die(); // For further security
-;/*
 
 [general]
-# "url" has to contain page indicator (/P-x/). This is not existent on the first search result page but can be added manually
+url = "https://www.immobilienscout24.de/Suche/S-T/Wohnung-Miete/Baden-Wuerttemberg/Konstanz-Kreis/Konstanz/2,00-/55,00-"
-url = "https://www.immobilienscout24.de/Suche/S-2/P-1/Wohnung-Miete/Nordrhein-Westfalen/Koeln/70_6_118_39_20_101_2_50_11_56_120/2,00-3,00/-80,00/EURO--900,00/-/-/false/-/-/true/-/-/true"
 db = "angebote.json"
 
 [mail]
-to = "to@example.com"
+to = "me@example.com"
-from = "from@example.com"
+from = "Immoscout Helper <noreply@example.com>"
-
-;*/
-;?>

index.php

@@ -45,10 +45,14 @@ function immo_download($db) {
   
   // get amount of available pages
   $searchPages = $site->query('//div[@id="pageSelection"]/select');
-  $pages = $searchPages->item(0)->childNodes->length;
+  if($searchPages->length == 0) {
+    $pages=1;
+  } else {
+    $pages = $searchPages->item(0)->childNodes->length;
+  }
   // create a dynamic url in which the current page number can be set in
-  $queryurldyn = str_replace("/P-1/", "/P-%page%/", $queryurl);
+  $queryurldyn = preg_replace("/\/Suche\//", "/Suche/P-%page%/", $queryurl);
-  
+
   // loop through available pages
   for ($page = 1; $page <= $pages; $page++) {
     $queryurlcur = str_replace("%page%", $page, $queryurldyn);