The code for this post: https://medium.com/damilola-jolayemi/when-writing-code-for-handling-exceptions-do-you-repeat-yourself-2dc62078500f

handler.php

<?php

class Handler
{
    protected $exception;

    public function __construct($exception)
    {
        $this->exception = $exception;
    }

    protected $expectedExceptions = [
        \Stripe\Error\Card::class,
        \Stripe\Error\RateLimit::class,
        \Stripe\Error\InvalidRequest::class,
        \Stripe\Error\Authentication::class,
        \Stripe\Error\ApiConnection::class,
        \Stripe\Error\Base::class
    ];

    public function unexpected()
    {
        $exceptionClass = get_class($this->exception);
        if ( ! in_array($exceptionClass, $this->expectedExceptions) ) {
          //something unrelated to stripe happened.
          //handle it here
        }
    }

    public function respond()
    {
        $this->unexpected();

        if($this->exception instanceof \Stripe\Error\Card ) {
            //respond accordingly
        } elseif( $this->exception instanceof \Stripe\Error\RateLimit ) {
            //respond accordingly
        } elseif( $this->exception instanceof \Stripe\Error\InvalidRequestt ) {
            //respond accordingly
            dd('getting this now');
        } elseif( $this->exception instanceof \Stripe\Error\Authentication ) {
            //respond accordingly
            dd('getting auth key issue now');
        } elseif( $this->exception instanceof \Stripe\Error\ApiConnection ) {
            //respond accordingly
        } elseif( $this->exception instanceof \Stripe\Error\Base ) {
            //respond accordingly
        }
    }

}

handler2.php

<?php


class Handler2
{
    protected $exception;
    protected $exceptionClass;

    public function __construct($exception)
    {
        $this->exception = $exception;
    }

    protected $expectedExceptions = [
        \Stripe\Error\Card::class,
        \Stripe\Error\RateLimit::class,
        \Stripe\Error\InvalidRequest::class,
        \Stripe\Error\Authentication::class,
        \Stripe\Error\ApiConnection::class,
        \Stripe\Error\Base::class
    ];

    public function respond()
    {
        $this->unexpected();

        $expectedExceptionMethodName = lcfirst (
            preg_replace("/[^a-zA-Z]/", "", $this->exceptionClass)
        );

        $this->$expectedExceptionMethodName();
    }

    public function unexpected()
    {
        $this->exceptionClass = get_class($this->exception);
        if ( ! in_array($this->exceptionClass, $this->expectedExceptions) ) {
            //something unrelated to stripe happened
            //handle it here
        }
    }

    public function stripeErrorCard()
    {
        //handle it
    }

    public function stripeErrorInvalidRequest()
    {
        //handle it
    }

    public function stripeErrorAuthentication()
    {
        //handle it
    }

    public function stripeErrorRateLimit()
    {
        //handle it
    }

    public function stripeErrorApiConnection()
    {
        //handle it
    }

    public function stripeErrorBase()
    {
        //handle it
    }
}