tsh-code

<?php
//....
$action = DocumentSigningAction::create($doc);

/** @var \Psr\Http\Message\ResponseInterface $response */
$response = $action->execute();

if ($response->getStatusCode() >= 500) {
    throw new SigningServiceUnavailable();
}

tsh-code

<?php
//....
$action = DocumentSigningAction::create($doc);

/** @var \Psr\Http\Message\ResponseInterface $response */
$response = $action->execute();

if ($response->getStatusCode() !== 200) {
    throw new SigningException("Could not sign document");
}

tsh-code

<?php

try {
    $loanSchedule = $calculator->calculate($loanDeptorRequest);
} catch (CalculatorException $e) {
    // log the event or sth else
}

tsh-code

<?php
class XYZ {
    // ...
    public static function openForRead(string $id): ?SplFileObject
    {
        $fileInfo = new SplFileInfo($id);
        try {
            return $fileInfo->openFile('r');
        } catch (\Exception $e) {
            return null;

tsh-code

<?php
class XYZ {
    // ...
    public static function openForRead(string $id): ?resouce
    {
        $resource = @fopen($id, 'r');
        return $resource ? $resource : null;
    }
}

tsh-code

<?php
class XYZ {
    // ...
    public function openForRead($id)
    {
        return @fopen($id, 'r');
    }
}