Laravel calculate and ignore the null value

I’m trying to perform a calculation on my controller I have this problem how do I ignore if one of the columns is NULL, like the way excel handles on an empty cell. $data = $request->input(‘datas’); //here scores is the input array param foreach($data as $row){ $grade = Grade::find($row[‘id’]); $grade->final_average =round( ($row[‘term1_result’] + $row[‘term2_result’] +…

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supervisord stops silently but leaves processes running

I’m running some gunicorn processes using supervisord. When I run sudo supervisord, the processes start correctly, and a message like 2020-01-08 14:22:43,534 INFO success: my-great-process entered RUNNING state, process has stayed up for > than 1 seconds (startsecs) is appended to supervisord.log. If I immediately run supervisorctl in another terminal instance, I can run relevant…

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Download all PDF files from crawled links

While running code it says that ProductListPage is null and after dropping an error does not proceed forward. Any ideas how to solve this issue? Wait until //div[@class=’productContain padb6′]//div[@class=’large-4 medium-4 columns’]/a is found or something else? Here is my current code: HtmlDocument htmlDoc = new HtmlWeb().Load(“https://example.com/”); HtmlNodeCollection ProductListPage = htmlDoc.DocumentNode.SelectNodes(“//div[@class=’productContain padb6′]//div[@class=’large-4 medium-4 columns’]/a”); foreach (HtmlNode…

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