title: what does mysql_real_escape_string() really do?
body: <p>One thing that I hate about documentation at times (when you're a beginner) is how it doesn't really describe things in english. Would anyone mind translating this documentation for me? I'd like to know how exactly this makes things harder for a hacker to insert characters.</p>
  
  <p><a href="http://php.net/manual/en/function.mysql-real-escape-string.php" rel="noreferrer">http://php.net/manual/en/function.mysql-real-escape-string.php</a></p>
  
  <p>Also, if this is the case, how would a hacker try to insert characters?</p>