first commit

system/library/cache/file.php

@@ -0,0 +1,95 @@
+<?php
+namespace Opencart\System\Library\Cache;
+/**
+ * Class File
+ *
+ * @package
+ */
+class File {
+	/**
+	 * @var int
+	 */
+	private int $expire;
+	
+	/**
+	 * Constructor
+	 *
+	 * @param    int  $expire
+	 */
+	public function __construct(int $expire = 3600) {
+		$this->expire = $expire;
+	}
+	
+	/**
+	 * Get
+	 *
+	 * @param    string  $key
+	 *
+	 * @return array|string|null
+	 */
+	public function get(string $key): array|string|null {
+		$files = glob(DIR_CACHE . 'cache.' . preg_replace('/[^A-Z0-9\._-]/i', '', $key) . '.*');
+
+		if ($files) {
+			return json_decode(file_get_contents($files[0]), true);
+		} else {
+			return [];
+		}
+	}
+
+	/**
+	 * Set
+	 *
+	 * @param    string  $key
+	 * @param    array|string|null  $value
+	 *
+	 * @return void
+	 */
+	public function set(string $key, array|string|null $value, int $expire = 0): void {
+		$this->delete($key);
+
+		if (!$expire) {
+			$expire = $this->expire;
+		}
+
+		file_put_contents(DIR_CACHE . 'cache.' . preg_replace('/[^A-Z0-9\._-]/i', '', $key) . '.' . (time() + $expire), json_encode($value));
+	}
+
+	/**
+	 * Delete
+	 *
+	 * @param    string  $key
+	 *
+	 * @return void
+	 */
+	public function delete(string $key): void {
+		$files = glob(DIR_CACHE . 'cache.' . preg_replace('/[^A-Z0-9\._-]/i', '', $key) . '.*');
+
+		if ($files) {
+			foreach ($files as $file) {
+				if (!@unlink($file)) {
+					clearstatcache(false, $file);
+				}
+			}
+		}
+	}
+
+	/**
+	 * Destructor
+	 */
+	public function __destruct() {
+		$files = glob(DIR_CACHE . 'cache.*');
+
+		if ($files && rand(1, 100) == 1) {
+			foreach ($files as $file) {
+				$time = substr(strrchr($file, '.'), 1);
+
+				if ($time < time()) {
+					if (!@unlink($file)) {
+						clearstatcache(false, $file);
+					}
+				}
+			}
+		}
+	}
+}