Trying to access array offset on value of type null

$file_show = mysqli_query($link,$file_show) or die('Query failed:'. mysqli_error());$file_row=mysqli_fetch_array($file_show);echo $file_row[0];$print_name = $target_row[2];if($file_row[0] == "ntof"){  $treechange = 1;  $upnodename = $file_row[2];}else{  $treechange = 0;  $upnodename = $target_row[2];}
isset($cOTLdata['char_data'])
$len = isset($cOTLdata['char_data']) ? count($cOTLdata['char_data']) : 0;
if(isset($file_row[0])){if($file_row[0] == "ntof"){$treechange = 1;$upnodename = $file_row[2];}else{$treechange = 0;$upnodename = $target_row[2];}}

--

--

--

NTUT CSIE | Biomedical Informatics Lab | github.com/stwater20 | sectools.tw

Love podcasts or audiobooks? Learn on the go with our new app.

Recommended from Medium

Simplifying App Development with ‘Drag-and-Drop’ using Neutrinos Platform!

Using Custom Payload with Chatfuel and Dialogflow (FREE CHEATSHEET)

Project Associate — I — 5 Posts

Open your APIs or Stay Alone in the Dark

Pwnable.kr writeup — uaf

(Almost) Everything that the AWS S3 Can Do!

How To Run GUI Based Application Inside Docker Containers

Andela Kenya Boot Camp XIV, Day 1

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store
ryan.chen

ryan.chen

NTUT CSIE | Biomedical Informatics Lab | github.com/stwater20 | sectools.tw

More from Medium

Computer Based Testing System

Efficient ways to call .env

How to enable PCNTL in Apache

How to use node version manager in Windows ?