composer require alexantr/yii2-tinymce

composer require alexantr/yii2-elfinder
建立 @app/config/tinymce.php

return [
    'plugins' => [
        'anchor', 'charmap', 'code', 'help', 'hr',
        'image', 'link', 'lists', 'media', 'paste',
        'searchreplace', 'table',
    ],
    'height' => 500,
    'convert_urls' => false,
    'element_format' => 'html',
    'image_caption' => true,
    'keep_styles' => false,
    'paste_block_drop' => true,
    'table_default_attributes' => new yii\web\JsExpression('{}'),
    'table_default_styles' => new yii\web\JsExpression('{}'),
    'invalid_elements' => 'acronym,font,center,nobr,strike,noembed,script,noscript',
    'extended_valid_elements' => 'strong/b,em/i,table[style]',
    // elFinder file manager https://github.com/alexantr/yii2-elfinder
    'file_picker_callback' => alexantr\elfinder\TinyMCE::getFilePickerCallback(['elfinder/tinymce']),
];

中文問題

Download the TinyMCE 4 language pack from here.（https://www.tiny.cloud/docs-4x/language/tinymce4x_languages.zip）
Unpack the language .js file into your tinymce/langs folder.

====

   field($model, 'content')->widget(TinyMce::className(), [
    'name' => 'attributeName',
    'language' => 'zh_TW',
    'presetPath' => '@app/config/tinymce.php',
    'clientOptions' => [
        'height' => 500,

    ],
]) ?>
============================

@vendor\alexantr\yii2-tinymce\src\TinyMCE.php

protected function registerScripts()
{
    $view = $this->getView();
    TinyMCEAsset::register($view);
    WidgetAsset::register($view);

    $id = $this->options['id'];
    if ($this->language !== null && $this->language !== 'en') {
        $langFile = "langs/{$this->language}.js";
        $langAssetBundle = TinyMceLangAsset::register($view);
        $langAssetBundle->js[] = $langFile;
        $this->clientOptions['language_url'] = $langAssetBundle->baseUrl . "/{$langFile}";
        $this->clientOptions['language'] = "{$this->language}";//Language fix. Without it EN language when add some plugins like codemirror
    }
    $encodedOptions = !empty($this->clientOptions) ? Json::htmlEncode($this->clientOptions) : '{}';

    $view->registerJs("alexantr.tinyMceWidget('$id', $encodedOptions);", View::POS_END);
}
===============================