What is the name of the input?

[H36615]

Trying to use ngx-uploader fails at my php backend at if(isset($_POST["submit"])){... Which is the same as if I change my working html's <input type="submit" name="submit" value="press to upload"> name attribute to something else <input type="submit" name="somethingElse" value="press to upload"> which results php failing at the same line mentioned above.

What is the 'name attribute' used in ngx-uploader? Is there a way to see this? Tried to look up from the docs and trying different values in my backend, no luck.

[Yakamozduan]

        if (output.type === 'allAddedToQueue') {
            const event: UploadInput = {
                type: 'uploadAll',
                url: this.url,
                method: 'POST',
                fieldName: 'somethingElse',
                data: {resPath: this.appConfig.img_resPath, storePath: this.appConfig.img_storePath}
            };
            this.uploadInput.emit(event);
        }