Init ci

php/core/classes/db/BeatDB.class.php

@@ -0,0 +1,63 @@
+<?php
+
+// 123456 --> /www/beatdb/1/2/3/4/5/123456.json
+
+class BeatDB {
+	
+	private static $_db_root = '/www/beatdb/';
+	
+	public static function get($key) {
+		if (self::exists($key)) {
+			return json_decode(
+				file_get_contents(
+					self::$_db_root . implode('/', self::getFilePathByKey($key))
+				)
+			);
+		} else {
+			return false;
+		}
+	}
+	
+	public static function set($key, $data) {
+		$path = self::getFilePathByKey($key);
+		$part = self::$_db_root;
+		for ($i = 0; $i < count($path) - 1; $i++) {
+			$part .= $path[$i] .'/';
+		}
+		if (!file_exists($part)) {
+			if (!mkdir($part, 0777, true)) {
+				return false;
+			}
+		}
+		return (bool) file_put_contents($part . $path[$i], json_encode($data));
+	}
+	
+	public static function delete($key) {
+		$path = self::getFilePathByKey($key);
+		$ret = array();
+		for ($i = count($path) - 1; $i >= 0; $i--) {
+			$part = self::$_db_root . implode('/', $path);
+			unset($path[$i]);
+			if (is_file($part)) {
+				unlink($part);
+			} elseif (count(scandir($part)) == 2) {
+				rmdir($part);
+			}
+		}
+		return true;
+	}
+	
+	public static function exists($key) {
+		return file_exists(self::$_db_root . implode('/', self::getFilePathByKey($key)));
+	}
+	
+	private static function getFilePathByKey($key) {
+		$key = strval($key);
+		$path = array();
+		for ($i = 0; $i < strlen($key) - 1; $i++) {
+			$path[] = substr($key, $i, 1);
+		}
+		$path[] = $key .'.json';
+		return $path;
+	}
+}