Warning - Trying to access array offset on value of type null - PHP 7.4.0

[condor2]

What version of OpenCart are you reporting this for?
Master Branch

Describe the bug
This warning message is displayed on Error log using Php 7.4

PHP Notice: Trying to access array offset on value of type null in admin/controller/marketplace/extension.php on line 48

Same in vendor/leafo/scssphp/src/Compiler.php on line 5230

Server / Test environment (please complete the following information):

• PHP 7.4

[elanclarkson]

+1 Same problem here

[elanclarkson]

Not sure if there are other issues in PHP 7.4 yet but I managed to fix this error (which for me was occurring in storage/vendor/scss.inc.php) by changing this line:

$key = $key[1];

To this:

$key = isset($key[1]) ? $key[1] : null;

[condor2]

No missing column_left icons for you? :)
Because somehow in 7.4 space has no effect.

#7778

[elanclarkson]

Yes actually I realised the icons in the admin menu disappeared, and then ran into that problem with spacing which was causing css class names to merge together in some of the twig templates.

Ended up here twigphp/Twig#3248 and then decided attempting to cradle Opencart into PHP 7.4 wasn't a good idea when they obviously just don't support it yet (or at least not in the version I'm using - v3.0.2.0).

[condor2]

From system/library/template/Twig/Lexer.php

Change this (line 164)
$text = rtrim($text);

Replace with:

[wguerram]

@condor2 your if and elseif conditions evaluate the same?

[condor2]

twigphp/Twig@1fb0f97

[rodrigomanara]

I have found the same issue and I just done what @elanclarkson done as well and fixed the issue,
I don't if this fix was sugest to the verndor as well.
$Key = $Key[1] ?? null;

[condor2]

@condor2 your if and elseif conditions evaluate the same?

I think the best solution is this: (and not from screenshot)

    if ($this->options['whitespace_trim'] === $this->positions[2][$this->position][0]) {
        $text = rtrim($text);
    }

instead of this:

    if (isset($this->positions[2][$this->position][0])) {
        $text = rtrim($text);
    }

Work just fine

[Giohuram]

Please can someone help me solve this issue??:

Warning: Trying to access array offset on value of type null in /htdocs/wp-content/plugins/tuturn/templates/single-tuturn-instructor/education.php on line 39