diff --git a/install.php b/install.php
index 362cee78..a5fd72eb 100644
--- a/install.php
+++ b/install.php
@@ -759,7 +759,7 @@ function install_step_1_perform()
     $realUploadDir = \Typecho\Common::url($uploadDir, __TYPECHO_ROOT_DIR__);
     $writeable = true;
     if (is_dir($realUploadDir)) {
-        if (!is_writeable($realUploadDir) || !is_readable($realUploadDir)) {
+        if (!is_writable($realUploadDir) || !is_readable($realUploadDir)) {
             if (!@chmod($realUploadDir, 0755)) {
                 $writeable = false;
             }
diff --git a/var/Utils/Upgrade.php b/var/Utils/Upgrade.php
index 2a1cdb12..78737eaf 100644
--- a/var/Utils/Upgrade.php
+++ b/var/Utils/Upgrade.php
@@ -103,7 +103,7 @@ class Upgrade
      */
     public static function v0_4r9_1_14($db, $options)
     {
-        if (is_writeable(__TYPECHO_ROOT_DIR__ . '/config.inc.php')) {
+        if (is_writable(__TYPECHO_ROOT_DIR__ . '/config.inc.php')) {
             $handle = fopen(__TYPECHO_ROOT_DIR__ . '/config.inc.php', 'ab');
             fwrite($handle, '
 /** 初始化时区 */
@@ -351,7 +351,7 @@ Typecho_Date::setTimezoneOffset($options->timezone);
         //创建上传目录
         $uploadDir = Common::url(Upload::UPLOAD_DIR, __TYPECHO_ROOT_DIR__);
         if (is_dir($uploadDir)) {
-            if (!is_writeable($uploadDir)) {
+            if (!is_writable($uploadDir)) {
                 if (!@chmod($uploadDir, 0755)) {
                     throw new \Typecho\Widget\Exception(_t('上传目录无法写入, 请手动将安装目录下的 %s 目录的权限设置为可写然后继续升级', Upload::UPLOAD_DIR));
                 }
@@ -530,7 +530,7 @@ Typecho_Date::setTimezoneOffset($options->timezone);
             ->rows(['name' => 'gzip', 'user' => 0, 'value' => 0]));
 
 
-        if (is_writeable(__TYPECHO_ROOT_DIR__ . '/config.inc.php')) {
+        if (is_writable(__TYPECHO_ROOT_DIR__ . '/config.inc.php')) {
             $contents = file_get_contents(__TYPECHO_ROOT_DIR__ . '/config.inc.php');
             $contents = preg_replace("/Common::init([^;]+);/is", "Common::init(array(
     'autoLoad'          =>  true,
diff --git a/var/Widget/Options/Permalink.php b/var/Widget/Options/Permalink.php
index a859950a..a266fedb 100644
--- a/var/Widget/Options/Permalink.php
+++ b/var/Widget/Options/Permalink.php
@@ -67,7 +67,7 @@ class Permalink extends Options implements ActionInterface
             $hasWrote = false;
 
             if (!file_exists(__TYPECHO_ROOT_DIR__ . '/.htaccess') && strpos(php_sapi_name(), 'apache') !== false) {
-                if (is_writeable(__TYPECHO_ROOT_DIR__)) {
+                if (is_writable(__TYPECHO_ROOT_DIR__)) {
                     $parsed = parse_url($this->options->siteUrl);
                     $basePath = empty($parsed['path']) ? '/' : $parsed['path'];
                     $basePath = rtrim($basePath, '/') . '/';
@@ -215,7 +215,7 @@ RewriteRule . {$basePath}index.php [L]
                 if (
                     strpos(php_sapi_name(), 'apache') !== false
                     && !file_exists(__TYPECHO_ROOT_DIR__ . '/.htaccess')
-                    && !is_writeable(__TYPECHO_ROOT_DIR__)
+                    && !is_writable(__TYPECHO_ROOT_DIR__)
                 ) {
                     $errorStr .= '<br /><strong>' . _t('我们检测到你使用了apache服务器, 但是程序无法在根目录创建.htaccess文件, 这可能是产生这个错误的原因.')
                         . _t('请调整你的目录权限, 或者手动创建一个.htaccess文件.') . '</strong>';
diff --git a/var/Widget/Themes/Edit.php b/var/Widget/Themes/Edit.php
index 5b1cb1a4..588801c9 100644
--- a/var/Widget/Themes/Edit.php
+++ b/var/Widget/Themes/Edit.php
@@ -103,7 +103,7 @@ class Edit extends Options implements ActionInterface
         $path = $this->options->themeFile($theme, $file);
 
         if (
-            file_exists($path) && is_writeable($path)
+            file_exists($path) && is_writable($path)
             && (!defined('__TYPECHO_THEME_WRITEABLE__') || __TYPECHO_THEME_WRITEABLE__)
         ) {
             $handle = fopen($path, 'wb');
diff --git a/var/Widget/Themes/Files.php b/var/Widget/Themes/Files.php
index a44ba928..5eb2e7b5 100644
--- a/var/Widget/Themes/Files.php
+++ b/var/Widget/Themes/Files.php
@@ -120,7 +120,7 @@ class Files extends Base
      */
     public function currentIsWriteable(): bool
     {
-        return is_writeable(Options::alloc()
+        return is_writable(Options::alloc()
                 ->themeFile($this->currentTheme, $this->currentFile))
             && self::isWriteable();
     }