PHP Quick Find malicious code in the database method, quickly find malicious code _php Tutorial

PHP Quick Find malicious code in the database method, quickly find malicious code

The examples in this article describe how PHP quickly finds malicious code in a database. Share to everyone for your reference. Specific as follows:

The database is entered into malicious code, in order to keep your database secure, you have to be careful to clean up. With the following super-convenient feature, you can quickly clear the database of malicious code.

function CleanInput ($input) {$search = array (  ' @]*?>.*? @si ',//Strip out JavaScript  ' @<[\/\!] *? [^<>]*?> @si ',//Strip out HTML tags  ' @]*?>.*? @siU ',//Strip style tags properly  ' @@ '//Strip multi- Line comments);  $output = Preg_replace ($search, ", $input);  return $output; }function sanitize ($input) {  if (Is_array ($input)) {    foreach ($input as $var = $val) {      $output [$var] = Sanitize ($val);    }  }  else {    if (GET_MAGIC_QUOTES_GPC ()) {      $input = stripslashes ($input);    }    $input = CleanInput ($input);    $output = mysql_real_escape_string ($input);  }  return $output;} Usage: $bad _string = "hi! It ' s a good day! "; $good _string = sanitize ($bad _string);//$good _string returns "hi! It\ ' s a good day! " Also use for getting post/get Variables$_post = sanitize ($_post); $_get = sanitize ($_get);

I hope this article is helpful to everyone's PHP programming.

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