class validate
{
// Function to Sanatize the User Input
function sanitize($input)
{
// Checks if the Input is an Array
if (is_array($input)) {
// Each layer of an array is Sanatized independently
foreach ($input as $var => $val) {
$output[$var] = $this->sanitize($val);
}
} else {
// Checks for Magic Qoutes
if (get_magic_quotes_gpc()) {
// Strips Slashes of the input
$input = stripslashes($input);
}
// Cleaning TAGS by calling the function
$input = $this->clean_tags($input);
// Adds Slashes for inserting into DATABASE
$output = mysql_real_escape_string($input);
}
// Return the OUTPUT
return $output;
}
// Strips HTML, JS, Style and Comments from the user Input
function clean_tags($input)
{
// Set the Patterns
$search = array('@<script[^>]*?>.*?</script>@si', // Strip out javascript
'@<[\/\!]*?[^<>]*?>@si', // Strip out HTML tags
'@<style[^>]*?>.*?</style>@siU', // Strip style tags properly
'@<![\s\S]*?--[ \t\n\r]*>@' // Strip multi-line comments
);
// Strip the above patters
$output = preg_replace($search, '', $input);
// Return the OUTPUT
return $output;
}
// Function to Desanatize the User Input
function desanitize($input)
{
if (is_array($input)) {
// Each layer of an array is Sanatized independently
foreach ($input as $var => $val) {
$output[$var] = $this->desanitize($val);
}
} else {
// Checks for Magic Qoutes
if (get_magic_quotes_gpc()) {
// Strips Slashes of the input
$output = stripslashes($input);
}
}
// Returns an array Desanatized
return $output;
}
// Function to Validate Email - International Format
function email($email)
{
// Matches Email Id to Internation format
if (preg_match('/^[_A-z0-9-]+((\.|\+)[_A-z0-9-]+)*@[A-z0-9-]+(\.[A-z0-9-]+)*(\.[A-z]{2,4})$/',
$email)) {
return true;
} else {
return false;
}
}
// Method to Validate DATE - input MONTH,DAY,YEAR
function ymd($month, $day, $year)
{
// Checks the date including Leap Year
if (checkdate($month, $day, $year)) {
return true;
} else {
return false;
}
}
// Method to Check for Simple BLOG text
function text($text)
{
$result = ereg("^[A-Za-z0-9\ ]+$", $text);
if ($result) {
return true;
} else {
return false;
}
}
// Method to Check SINGLE WORD with A-Za-z0-9 with NO SPACES
function alpha_num($text)
{
$result = ereg("^[A-Za-z0-9]+$", $text);
if ($result) {
return true;
} else {
return false;
}
}
// Method to Check SINGLE WORD with only Characters with NO SPACES
function alpha($text)
{
$result = ereg("^[A-Za-z]+$", $text);
if ($result) {
return true;
} else {
return false;
}
}
// Method to Validate numbers only
function num($input)
{
if (is_numeric($input)) {
return true;
} else {
return false;
}
}
// Validates 10 DIGIT mobile CODE
function mobile($input)
{
if (is_numeric($input) && (strlen($input) == 10)) {
return true;
} else {
return false;
}
}
// MIN LENGTH of a string
function minlength($input, $min)
{
if ((strlen($input) >= $min)) {
return true;
} else {
return false;
}
}
//Check Username
function username($input)
{
// Checks if the Username is entered
if (isset($input)) {
// Checks if the Username contains alpha_num with out a scape or special Char
if ($this->alpha_num($input)) {
// Checks if the Username is on Min 3 Char
if ($this->minlength($input, 3)) {
// Accepts the Input
return true;
} else {
// Throws an Error
echo 'Min Length of Username is 3 Characters';
return false;
}
} else {
// Throws an Error
echo 'No Spaces or Special Characters Allowed!!!';
return false;
}
} else {
// Throws an Error
echo 'Please enter a Username';
return false;
}
}
//Check Password
function password($password1, $password2)
{
// Check if both Password fields are typed
if ((isset($password1) and isset($password2))) {
// Check if both the password fields match
if ($password1 == $password2) {
// Check for min Length
if ($this->minlength($password1, 6) == true) {
// Check for Special chars and spaces
if ($this->alpha_num($password1) == true) {
// Accept Password
$password = $password1;
return true;
} else {
// Throws an Error
echo 'Password can contain A-Za-z0-9';
return false;
}
} else {
// Throws an Error
echo 'Min Length 6 Char.';
return false;
}
} else {
// Throws an Error
echo 'Passwords dont match';
return false;
}
} else {
// Throws an Error
echo 'You forgot to enter your password.';
return false;
}
}
}
I have Created a VALIDATION CLASS... can plz tell if its the right way of doing it in OOPs. and have i left out any other USEFULL validation process
