PHP
function clean_input($a){
$data=trim($a);
$data=stripslashes($a);
$data=htmlspecialchars($a);
return $data;
}
if($_SERVER['REQUEST_METHOD'] == 'POST'){
$name=clean_input($_POST['name']);
$phone=clean_input($_POST['phone']);
$email=clean_input($_POST['email']);
$comments=clean_input($_POST['comments']);
}
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