Product Detail RAJANI EXPORTS

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Fatal error: Uncaught mysqli_sql_exception: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'order by rand() limit 0,4' at line 1 in /home/rajaniexports/public_html/productdetail.php:423 Stack trace: #0 /home/rajaniexports/public_html/productdetail.php(423): mysqli_query(Object(mysqli), 'SELECT * FROM `...') #1 {main} thrown in /home/rajaniexports/public_html/productdetail.php on line 423