![How to Validate (and Sanitize) User Input In PHP Using Filter_Input() and Filter_Var() | by John Morris | Medium How to Validate (and Sanitize) User Input In PHP Using Filter_Input() and Filter_Var() | by John Morris | Medium](https://miro.medium.com/max/1400/0*LOK4EwFmpQ_Ypn00.png)
How to Validate (and Sanitize) User Input In PHP Using Filter_Input() and Filter_Var() | by John Morris | Medium
Email validation by way of FILTER_VALIDATE_EMAIL behaves differently depending on PHP version/installation · Issue #897 · symfony/symfony · GitHub
![Fatal error: Uncaught Error: Call to a member function prepare() on null [C:\xampp\htdocs\twitter\core\classes\user.php on line 19] - Stack Overflow Fatal error: Uncaught Error: Call to a member function prepare() on null [C:\xampp\htdocs\twitter\core\classes\user.php on line 19] - Stack Overflow](https://i.stack.imgur.com/kB4NU.png)