Moved backend functions to new file

site/public/index.php

 <?php
 
-// Generate a random number for sorting by random
-$random = rand();
+include '../random.php';
 
-// Assemble a query string to send to Solr. This uses the Solr hostname from config.env. Solr's query syntax can be found at many sites including https://lucene.apache.org/solr/guide/6_6/the-standard-query-parser.html
-// This query retrieves only the bib identifier field for records which satisfy the search query
-#$solrurl = 'http://host.docker.internal:8983/solr/epo_data/select?q.op=OR&q=*%3A*&wt=json&sort=random_' . $random . '%20asc';
-$solrurl = 'http://' . $_ENV["SOLR_HOSTNAME"] . ':' . $_ENV["SOLR_PORT"] . '/solr/' . $_ENV["SOLR_CORE"] . '/select?q.op=OR&q=*%3A*&wt=json&sort=random_' . $random . '%20asc';
-
-
-// Perform Curl request on the Solr API
-$ch = curl_init();
-curl_setopt($ch, CURLOPT_URL, $solrurl);
-curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
-curl_setopt($ch, CURLOPT_HEADER, FALSE);
-curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');
-$response = curl_exec($ch);
-curl_close($ch);
-
-// Turn the API response into useful Json
-$json = json_decode($response);
-
-// Pick a random key out of the docs array
-$random = array_rand($json->response->docs);
+$random_record = random_record();
 
 ?>
 
 
 <?php
 
-// Search for the title in the content element and display it
-$content = $json->response->docs[$random]->content;
-preg_match('/Application.*\n(.*)\n/', $content, $application_id);
-print_r($application_id[1]);
+echo $random_record['application_id'];
 
 ?>
 
 
 <?php
 
-// Search for the title in the content element and display it
-$content = $json->response->docs[$random]->content;
-preg_match('/Publication.*\n(.*)\n/', $content, $publication);
-print_r($publication[1]);
+echo $random_record['publication_id'];
 
 ?>
 
 
 <?php
 
-// Search for the title in the content element and display it
-$content = $json->response->docs[$random]->content;
-preg_match('/Title.*\n(.*)\n/', $content, $title);
-print_r($title[1]);
+echo $random_record['title'];
 
 ?>
 
 
 <?php
 
-// Search for the title in the content element and display it
-$content = $json->response->docs[$random]->content;
-preg_match('/Abstract.*\n(.*)\n/', $content, $abstract);
-print_r($abstract[1]);
+echo $random_record['abstract'];
 
 ?>

site/random.php

+<?php
+
+function random_record (){
+
+  // Generate a random number for sorting by random
+  $random = rand();
+
+  // Assemble a query string to send to Solr. This uses the Solr hostname from config.env. Solr's query syntax can be found at many sites including https://lucene.apache.org/solr/guide/6_6/the-standard-query-parser.html
+  // This query retrieves only the bib identifier field for records which satisfy the search query
+  #$solrurl = 'http://host.docker.internal:8983/solr/epo_data/select?q.op=OR&q=*%3A*&wt=json&sort=random_' . $random . '%20asc';
+  $solrurl = 'http://' . $_ENV["SOLR_HOSTNAME"] . ':' . $_ENV["SOLR_PORT"] . '/solr/' . $_ENV["SOLR_CORE"] . '/select?q.op=OR&q=*%3A*&wt=json&sort=random_' . $random . '%20asc';
+
+  // Perform Curl request on the Solr API
+  $ch = curl_init();
+  curl_setopt($ch, CURLOPT_URL, $solrurl);
+  curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
+  curl_setopt($ch, CURLOPT_HEADER, FALSE);
+  curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');
+  $response = curl_exec($ch);
+  curl_close($ch);
+
+  // Turn the API response into useful Json
+  $json = json_decode($response);
+
+  // Pick a random key out of the docs array
+  $random = array_rand($json->response->docs);
+
+  // Search for the application ID in the content element and display it
+  $content = $json->response->docs[$random]->content;
+  preg_match('/Application.*\n(.*)\n/', $content, $application_id);
+  $application_id = json_encode($application_id[1]);
+  $output['application_id'] = $application_id;
+
+  // Search for the publication ID in the content element and display it
+  $content = $json->response->docs[$random]->content;
+  preg_match('/Publication.*\n(.*)\n/', $content, $publication);
+  $publication_id = json_encode($publication[1]);
+  $output['publication_id'] = $publication_id;
+
+  // Search for the title in the content element and display it
+  $content = $json->response->docs[$random]->content;
+  preg_match('/Title.*\n(.*)\n/', $content, $title);
+  $title = json_encode($title[1]);
+  $output['title'] = $title;
+
+  // Search for the abstract in the content element and display it
+  $content = $json->response->docs[$random]->content;
+  preg_match('/Abstract.*\n(.*)\n/', $content, $abstract);
+  $abstract = json_encode($abstract[1]);
+  $output['abstract'] = $abstract;
+
+  return $output;
+
+}
+
+?>