add update

include/update.php

@@ -0,0 +1,58 @@
+<?php
+/**
+ * update 1.5 to 1.6, run in console
+ * @author xiaomlove<1939737565@qq.com>
+ */
+
+function printLine($msg, $exit = false)
+{
+    echo sprintf("[%s] %s%s", date('Y-m-d H:i:s'), $msg, PHP_EOL);
+    if ($exit) {
+        exit(0);
+    }
+}
+
+if (php_sapi_name() != 'cli') {
+    printLine("Please run in console!", true);
+}
+
+//environment check
+printLine("Checking the environment...");
+if (version_compare(PHP_VERSION, '7.2.0', '<')) {
+    printLine(sprintf('Your PHP version: %s not match, require >= 7.2.0', PHP_VERSION));
+}
+$requireExtensions = ['mysqli', 'mbstring', 'gd', 'json'];
+foreach ($requireExtensions as $ext) {
+    if (extension_loaded($ext)) {
+        printLine("extension: $ext is loaded.");
+    } else {
+        printLine("Error: required extension: $ext is not loaded!", true);
+    }
+}
+if (!extension_loaded('redis')) {
+    printLine("warning: redis is not loaded. highly recommand install it, see: https://pecl.php.net/package/redis/");
+}
+$gdInfo = gd_info();
+$gdShouldAvaliable = ['JPEG Support', 'PNG Support', 'GIF Read Support'];
+foreach ($gdShouldAvaliable as $value) {
+    if (!isset($gdInfo[$value]) || !$gdInfo[$value]) {
+        printLine("Error: gd $value is not available", true);
+    }
+}
+
+//create .env file
+$rootPath = dirname(__DIR__);
+$envExample = "$rootPath/.env.example";
+$env = "$rootPath/.env";
+if (!file_exists("$rootPath.env")) {
+    printLine("Error: $envExample not exists.");
+}
+$copyResult = copy($envExample, $env);
+if ($copyResult !== true) {
+
+}
+
+
+
+
+