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Tag: php

Amazon Pay SDK InvalidSignatureError

I’m integrating Amazon Pay php SDK from documentation, but getting this error. Here’s my php implementation code: Here’s JS implementation code for generating Amazon Pay button. Answer Couple of problems with the code, mainly that you aren’t passing the payload and signature to the fro…

Problem pasting one image into another PHP

I want to paste the $original image into the center of $fondo image, i write the following code: The result i got is this: As you can see the cyan color is affecting original image: Any ideas on what i’m wrong? Thank you! Answer the solution is: Creating the image as imagecreatetruecolor instead of imag…

Getting error when accessing the variable from service

I am new to PHP. I am facing an issue while login. login.php Member Service When I click on the login button, I am getting the following error message: What am I doing wrong here? Answer You’re trying to use a variable as an array while it is a null (most possibly not declared/instantiated). An example …

How to get next and previous id on CodeIgniter3?

I have the following DB. As you can see, the ID is missing a tooth. so you cannot get a valid previous or next ID by simply adding or subtracting 1 to the current ID In SQL, to get a valid back and forth ID, I would write the following. I want to get this kind of record retrieval in

PHP Session variable is empty when it’s not empty

I’ve got a login system set up, and there are no problems with staying logged in. Both userid and username are stored as session variables (and stored in a table in the database), and I can access them for use within the html on the pages themselves just fine. I have a form with several multiple choice …

Laravel queued jobs are not retrying when they fail

The problem I’m dispatching a job to execute an action that needs a resource ready to be correctly executed, so if it fails it needs to be retried after some time. But what really happens is that if it fails, it’s not executed ever again. I’m using Supervisor to manage the queue and the data…