Do I need to escape variables if they are used only for running through isset()?
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Do I need to escape variables if they are used only for running through isset()?
Unless you’re going to later insert that value into a database, there’s nothing they can do.
isset("test');DROP TABLE users;--");would return “true”, but do absolutely nothing.If you are planning on using it later however, use
addslashes()ormysql_real_escape_string.But no, isset cannot do anything bad.