From 562627ab7cf91953405b8dae5566f2a553442f47 Mon Sep 17 00:00:00 2001
From: Skylar Ittner <skylar@netsyms.com>
Date: Tue, 25 Apr 2023 17:55:48 -0600
Subject: [PATCH] Add query caching

---
 index.php | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/index.php b/index.php
index fe8bd9f..df989c0 100644
--- a/index.php
+++ b/index.php
@@ -78,10 +78,15 @@ if (empty($_REQUEST["zip"])) {
     exit(json_encode(["status" => "ERROR", "message" => "Empty ZIP"]));
 }
 
-if (preg_match("/[0-9]{5}-?[0-9]{4}", $_REQUEST["zip"])) {
+if (preg_match("/[0-9]{5}-?[0-9]{4}/", $_REQUEST["zip"])) {
     $_REQUEST["zip"] = substr($_REQUEST["zip"], 0, 5);
 }
 
+$cacheresp = $memcache->get($_REQUEST["zip"] . "|" . $_REQUEST["address"]);
+if ($cacheresp !== false) {
+    exit($cacheresp);
+}
+
 $addressparts = explode(" ", $_REQUEST["address"], 2);
 
 if (count($addressparts) < 1 || !is_numeric($addressparts[0])) {
@@ -128,4 +133,8 @@ for ($i = 0; $i < count($results); $i++) {
     }
 }
 
-exit(json_encode(["status" => "OK", "results" => $finalresults]));
+$resultjson = json_encode(["status" => "OK", "results" => $finalresults]);
+
+$memcache->set($_REQUEST["zip"] . "|" . $_REQUEST["address"], $resultjson);
+
+exit($resultjson);