php - How to check if a user has more than 5 failed logins and prevent brute force -

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I want to avoid many unsuccessful logins and avoid users to stop attacks. If the number of unsuccessful login is 5 or more then captcha or disable access for 15 minutes.

In the code below, whether or not the user successfully logs in. Some codes are unavailable, I use sessions on the right login.

The number of failed logins can be found in the false_logins column.

$ results check if found in the $ login and $ password using a query.

Thanks for this. 

  $ result = mysql_query ($ qry); $ Member = mysql_fetch_assoc ($ result); // Check whether the query was successful and if the user is verified or not ($ member ['verified']) {// login successful mysql_query ("Update member set IP = '$ Ip', false_login = '0' Where entry = '$ login' '); header ("location: member-index.php"); exit ();} and {// login fail mysql_query ("updated member SET false_login = false_login + 1 WHERE login =' Header ("location: login-unsuccessful.fpp"); exit ();}} and {die ("question failed");}    < P> 
 
 You better login Make history, create a  ip + date  column and see that intervals are more than N failed attempts from the same IP.  
 And if that happened - for example , You can insert captcha as Google.

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