Wechat JS SDK Реализует открытие камеры для съемки фотографий и сохранения фотографий на сервере

wx.config(php
    echo Yii::$app->wechat->js->config([
        'chooseImage',
        'uploadImage',
        'downloadImage'
    ])
    ?>
);

wx.chooseImage({
    Count: 1, // default 9
    SizeType: ['original','compressed'], // You can specify whether it's an original or a compressed graph by default.
    SorceType: ['album','camera'], // You can specify whether the source is an album or a camera by default.
    success: function (res) {
        Var localIds = res. localIds; // Returns the list of local IDs for the selected photos, which can be used as the SRC attribute of the IMG tag to display the images
    }
});

wx.uploadImage({
    LocalId: LocalIds, // The local ID of the image to be uploaded, obtained by the chooseImage interface
    IsShow ProgressTips: 1, // defaults to 1, showing progress hints
    success: function (res) {
        Var serverId = res.serverId; //Server-side ID returning pictures
    },
    fail: function() {
       // Failed to upload pictures to Wechat server
        return false;
    }
});

// URL represents the PHP interface address
// SerrId represents the server-side ID of the image
$.post(url, {'media_id':serverId}, function(data) {
    if (data.type == 'success') {
       // Upload Success
        
    } else {
        // Upload failure
        
    }
});

public function actionUpload()
{
    Yii::$app->response->format = Response::FORMAT_JSON;
    $request = Yii::$app->request;
    $mediaId = $request->post('media_id');
    if (empty($mediaId)) {
        return [
            'type' => 'error',
            'message'=>'parameter error! '
        ];
    }
    // Temporary material
    $temporary = Yii::$app->wechat->material_temporary;
    // Create a server directory
    $path = 'wechat/' . date('Ymd',time()) . '/';
    $fullPath = Yii::getAlias('@webroot') . '/' . $path;
    if (!is_dir($fullPath)) {
        FileHelper::createDirectory($fullPath);
    }
    // Set Image Name
    $fileName = Yii::$app->getSecurity()->generateRandomString() . '-' . date('His',time());
    // Download temporary material from server to local server
    $temporary->download($mediaId, $fullPath, $fileName);
    return [
        'type' => 'success',
        'url' => $path . $fileName . '.jpg',
    ];
}

click 

wechat->js->config([
    'chooseImage',
    'uploadImage',
    'downloadImage'
]);
$JS = <<registerJs($JS);
?>