Functions and statements which will check tainted string
Taint Funkcje
More Details
PHP Manual

## Functions which untaint the tainted string

Function | Since
--- | ---
addslashes | 0.1.0
addcslashes | 0.1.0
htmlspecialchars | 0.1.0
htmlentities | 0.1.0
escapeshellcmd | 0.1.0
mysql_escape_string | 0.1.0
mysql_real_escape_string | 0.1.0
mysqli_escape_string/MySQLi::escape_string | 0.1.0
mysqli_real_escape_string/MySQLi::real_escape_string | 0.1.0
sqlite_escape_string/SqliteDataBase::escapeString | 0.3.0
PDO::quote | 0.3.0

Functions and statements which will check tainted string
Taint Funkcje
More Details
PHP Manual