I am trying to use http://simplehtmldom.sourceforge.net with Laravel 5.4. I put the file in my Classes directory ( App/Classes ) and on the top of my scraper controller I put use App\Classes. When I try to run the function scrape() I get the error
(1/1) FatalThrowableError
Call to undefined function App\Http\Controllers\file_get_html()
The function it is referring to is a helper function that is located outside the class. This should be simple, I just can't figure it out. Any help would be greatly appreciated.
Related
I have studied these 2 sources, but none of those works for me.
http://www.yiiframework.com/doc-2.0/guide-concept-autoloading.html
Yii2 - How do I AutoLoad a custom class?
I have created custom helper class which I want to include in every model, controller and view in my application. I am using Yii2 advanced app version 2.0.11, IDE I am using is PHPStorm
QUESTION:
What I want to achieve is to not use use keyword at the beggining of every class but still be able to simply call AppHelper::myMethod() in models, controllers and views.
How is that possible?
Closest I got it working was using this solution https://stackoverflow.com/a/35160997/5395463
All other solutions did not work for me. I am getting errors like:
PHP Fatal Error – yii\base\ErrorException
Class 'frontend\controllers\AppHelper' not found
when I simply dont include use commons\commands\AppHelper;
or when not using namespace as they suggest there with other settings:
Fatal error: Uncaught exception 'yii\base\UnknownClassException'
with message 'Unable to find 'common\commands\AppHelper'
in file: C:\xampp\htdocs\domain.com\web\common/commands/AppHelper.php.
Namespace missing?' in ...
SOLUTION:
Thanks for your responses, I got it working finaly. https://stackoverflow.com/a/42330631/5395463 solution works best for me.
So I removed namespace from that class, but left it in common\commands folder, added require to frontend/web/index.php and backend/web/index.php files (not sure if I should add it to yii file in root too, I didnt, so far it is working good anyways), and changed calls of class from AppHelper::myMethod() to \AppHelper::myMethod() looks like eveything is working now.
In Yii2 You can use an explicit way adding \ to full namespaced name
\frontend\controllers\AppHelper
so you can sue your method
\frontend\controllers\AppHelper::yourMethod();
Solution for not lazy coders:
create component with your class so you can use it like \Yii::$app->my_component
if even this is too much and your IDE is better than Windows Notepad prepare macro that will print this for you
Solution for lazy coders:
Save your class in single PHP file without namespace.
Modify you entry script to include this class - i.e. for Basic Project Template it's /web/index.php; add there
require(__DIR__ . '/path/to/MyClass.php');
For Advanced Project Template modify it properly.
Now you can use your class by calling it like \MyClass (yes, \ is required and yes, your IDE probably will modify it anyway to MyClass with use MyClass; added at the beginning.
I have made a new PHP file at the root directory of Magento (next to index.php) and it contains this code:
require 'app/bootstrap.php';
require 'app/Mage.php';
Mage::getModel('core/design_package')->cleanMergedJsCss();
Produces this error:
Fatal error: Call to a member function getModelInstance() on a non-object
in /home/edpadev/public_html/stage/bsr/app/Mage.php on line 463
From my understanding, Magento should dig up that particular method in /app/code/core/Mage/Core/Model/Design/Package.php.
I cannot var_dump it since it cannot instantiate it, I just get the same error when trying to do that.
I am able to call our third-party cache module's observer model and use its methods, and use the simple Mage::app()->cleanCache();, but the core function above does not work, though that is how it appears in examples by other developers in Google search results.
Try this. You might need to setup the store
umask(0);
require 'app/Mage.php';
Mage::app()->setCurrentStore(Mage_Core_Model_App::ADMIN_STORE_ID);
I'm new in Flash programming.
I'm trying to rebuild my app structure with external classes.
In this process, I copied and pasted a block of my code that contains a for loop in an external class but I've got an error:
Impossibile to use the "this" keyword in static methods.
How can I convert my code to make it working?
Thanks in advance!
Convert your code by not using this inside your static function
I am using sort of wrapping functions to add widgets to UiApp, like the sample below
function newButton(text, handler, callBack) {
var app = UiApp.getActiveApplication();
return app.createButton(text).addClickHandler(app.createServerClickHandler(handler).addCallbackElement(callBack));
}
it works fine when used within the same script like below
panel.add(newButton("Submit", "myHandler", panel));
but when including newButton function within a Library (ex. myLib) and it's called as myLib.newButton, I would get an error:
"Error encountered: Unknown macro myLib.myHandler"
panel.add(myLib.newButton("Submit", "myHandler", panel));
Any way of avoiding this problem, while keeping myHandler in the current script (not in myLib)?
Thanks, Fausto
Yes it can.
In your current script (wherein you imported the reference to the library)
create;
function myLib.myHandler(){
}
As your handler (string) keep passing the name 'myHandler'. The above function will be called by the button created in your library script.
It seems like apps script is using this namespace structure to avoid name collision.
You should keep in mind that this could purposely be not-documented by google for a reason. Maybe this current structure could be changed in the future. Or maybe im just being paranoid ;-)
I'm following a block of sample code that contains the line:
Application.application.addChild(myPrintData);
I am placing the code into a custom class (it's a Canvas) and I get an error message when I attempt to use Application.application....
The error is: -Access of undefined property Application
What does it mean and how can I get around it?
You are probably missing the import statement in your custom class.
import mx.core.Application;
Application is a layer of abstraction with a static object application which is the current application instance.
See note below from Reboog711. Thanks for the correction.