c

inc/Hura8/Traits/ClassCacheTrait.php

@@ -0,0 +1,33 @@
+<?php
+
+// 04-Mar-2023 simple array-cache for class
+namespace Hura8\Traits;
+
+trait ClassCacheTrait
+{
+
+    protected static $_cache = [];
+
+    protected static function clearCache() {
+        self::$_cache = [];
+    }
+
+    protected static function deleteCacheKey($key) {
+        if (array_key_exists($key, self::$_cache)) {
+            unset(self::$_cache[$key]);
+        }
+    }
+
+    protected static function getCache($key, callable $fn_create_value) {
+
+        if (!array_key_exists($key, self::$_cache)) {
+            //echo 'cached --- ';
+            $value = call_user_func($fn_create_value);
+            self::$_cache[$key] = $value;
+        }
+
+        // echo "from-cached-".$key."<br>";
+        return self::$_cache[$key];
+    }
+
+}