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    The question is very generic. Some great answers above, but most suggest prepared statements. MySQLi async does not support prepared statements, so the sprintf looks like a great option for this situation. Commented Apr 23, 2016 at 22:33
  • The link "Escaping is inadequate to prevent SQL injection" is currently broken (502). Might be temporary but does not inspire confidence in the site: paragonie.com/blog/2015/05/… Commented Jul 13, 2023 at 6:05