Basic logic work.

testsubmit.php

@@ -0,0 +1,67 @@
+<?php
+
+$url = $_POST['url'];
+$ctx = $_POST['ctx'];
+$keywords = $_POST['keywords'];
+$language = filter_input(INPUT_POST, 'language', FILTER_SANITIZE_STRING);
+$title = $_POST['title'];
+
+$searchprefix = "/search/searchresults.aspx?ctx=";
+$searchmiddle = "&type=Boolean&term=";
+$searchsuffix = "&sort=RELEVANCE&limit=&query=&page=0";
+$searchjoiner = "%20and%20";
+
+echo '<strong>URL:</strong> '.$url.'<br />';
+echo '<strong>CTX:</strong> '.$ctx.'<br />';
+echo '<strong>Keyword(s):</strong> '.$keywords.'<br />';
+echo '<strong>Langauge:</strong> '.$language.'<br />';
+echo '<strong>Title:</strong> '.$title.'<br />';
+
+// Check for data
+
+$la = 'la='.$language;
+
+if (!empty($keywords)) {
+    $kw = 'kw='.$keywords;
+}
+
+if (!empty($title)) {
+    $urlend = $searchjoiner.'ti='.$title.$searchsuffix; 
+} else {
+    $urlend = $searchsuffix;
+}
+
+
+
+echo '<h3>Constructed link</h3>';
+//echo $url.'/'.$ctx.'/';
+
+// $address = implode(", ", array_filter(array($addressline1, $addressline2, $addressline3));
+
+$SearchURL = implode("", array_filter(array($url, $searchprefix, $ctx, $searchmiddle, $la, $searchjoiner, $kw, $urlend)));
+
+echo '<a href="'.$SearchURL.'">'.$SearchURL.'</a><br /><br />';
+
+$ConstructedURL = $url.$searchprefix.$ctx.$searchmiddle.$kw.'%20and%20la='.$language.$searchsuffix;
+
+echo '<a href="'.$ConstructedURL.'">'.$ConstructedURL.'</a>';
+
+
+
+// https://ccs.polarislibrary.com/polaris/search/searchresults.aspx?ctx=14.1033.0.0.35&type=Boolean&term=COL=YOTHER%20and%20MAT=KIT%20and%20LA=POL%20and%20GENRE=games&sort=RELEVANCE&page=0
+// https://escondido.librarycatalog.info/polaris/search/searchresults.aspx?ctx=3.1033.0.0.6&type=Boolean&term=kw=batgirl
+
+
+/*
+Search for:
+* Keyword
+* Title
+* Author
+* Language
+* Subject Heading
+* Collection Code
+* Material Type
+* ISBN
+
+*/
+?>