Osclass 3.9 and PHP 7.4

Well the developer of Osclass 3.9 did a HUGE mistake not releasing some 3.9.x version with all updates and small scale fixes for 3.9.

Instead he moved on with 5 beta, with ZERO backwards compatibility. And now he also is missing for months ......

Practically SELF-DESTROYED. Now people have moved to other releases.

In any case, please in your posts, provide the issues details from the logs or any other detailed information you may have.

Otherwise we can't help.

There are actually 2 about magic quotes depreciated, one syntax error from htmlpurifier and a few others.

[18-Feb-2021 15:35:43 Europe/London] PHP Deprecated: Function get_magic_quotes_gpc() is deprecated in /home/oc-includes/osclass/core/Params.php on line 134

[18-Feb-2021 15:35:43 Europe/London] PHP Deprecated: Function get_magic_quotes_gpc() is deprecated in /home/oc-includes/osclass/core/Params.php on line 134

[18-Feb-2021 15:35:43 Europe/London] PHP Deprecated: Array and string offset access syntax with curly braces is deprecated in /home/oc-includes/vendor/ezyang/htmlpurifier/library/HTMLPurifier/Encoder.php on line 162

[18-Feb-2021 15:35:43 Europe/London] PHP Notice: Trying to access array offset on value of type bool in /home/oc-includes/osclass/helpers/hPage.php on line 227

[18-Feb-2021 15:35:58 Europe/London] PHP Notice: Trying to access array offset on value of type null in /home/oc-includes/osclass/frm/Category.form.class.php on line 47

[18-Feb-2021 15:35:58 Europe/London] PHP Notice: Trying to access array offset on value of type null in /home/oc-includes/osclass/frm/Category.form.class.php on line 69

This (and similar issue in the core)

[18-Feb-2021 15:35:43 Europe/London] PHP Deprecated: Function get_magic_quotes_gpc() is deprecated in /home/oc-includes/osclass/core/Params.php on line 134

can be easily be fixed. Find are remove carefully from params.php (two instances):

if(get_magic_quotes_gpc()) {
$value = strip_slashes_extended($value);
}

It seems the "magic quotes" exist in other files also. Do the same.

This:

[18-Feb-2021 15:35:43 Europe/London] PHP Deprecated: Array and string offset access syntax with curly braces is deprecated in /home/oc-includes/vendor/ezyang/htmlpurifier/library/HTMLPurifier/Encoder.php on line 162

can be also easily be fixed.

Replace line 162

$in = ord($str{$i});

with

$in = ord($str[$i]);

The rest 3 notices you posted are new to me and i will try to debug more and update if i find a solution.

[18-Feb-2021 15:35:43 Europe/London] PHP Notice: Trying to access array offset on value of type bool in /home/oc-includes/osclass/helpers/hPage.php on line 227

The code is:

    function osc_has_static_pages() {
        if ( !View::newInstance()->_exists('pages') ) {
            View::newInstance()->_exportVariableToView('pages', Page::newInstance()->listAll(false, 1) );
        }

        $page = View::newInstance()->_next('pages');
        View::newInstance()->_exportVariableToView('page_meta', json_decode($page['s_meta'], true));
        return $page;
    }

and the line in error is:

View::newInstance()->_exportVariableToView('page_meta', json_decode($page['s_meta'], true));

So change the whole function with:

function osc_has_static_pages()
{
    if (!View::newInstance()->_exists('pages')) {
        View::newInstance()->_exportVariableToView('pages', Page::newInstance()->listAll(false, 1));
    }
    if (View::newInstance()->_get('pageLoop') !== 'pages') {
        View::newInstance()->_exportVariableToView('oldPage', View::newInstance()->_get('page'));
        View::newInstance()->_exportVariableToView('pageLoop', 'pages');
    }
    $page = View::newInstance()->_next('pages');
    if (!$page) {
        View::newInstance()->_exportVariableToView('page', View::newInstance()->_get('oldPage'));
        View::newInstance()->_exportVariableToView('pageLoop', '');
    } else {
        View::newInstance()->_exportVariableToView('page', View::newInstance()->_current('pages'));
    }
    if (isset($page['s_meta'])) {
        View::newInstance()->_exportVariableToView('page_meta', json_decode($page['s_meta'], true));
    }

    return $page;
}