Fatal error: Uncaught Error: Call to undefined function Medoo\array_key_last()

[RetiredQQ]

Information

• Version of Medoo: 2.1.2 (latest)
• Type of Database (MySQL, MSSQL, SQLite...): MySQL
• System (Liunx\Windows\Mac): Linux - PHP 7.2

Describe the Problem
As I said in the title but when I try version 1.7.1 its works so I downgrade Medoo to the old version.

Detail Code
$db->select("users", ["is_refunded"], ["LIMIT" => 100]);

Expected output
A clear and concise description of what output you expected.
Fatal error: Uncaught Error: Call to undefined function Medoo\array_key_last() in /var/www/html/Medoo.php:1584

[catfan]

Since v2.0, the minimal requirement is PHP 7.3+.

Just upgrade to PHP 7.3, or PHP 7.4 is recommended.

[RetiredQQ]

I just confirm that after upgrading my PHP version to 7.3 the issue is gone.