Matching a multiple lines pattern via PHP's preg_match()

Answer 1

You have to remove all line breaks using \s in the regular expression:

$str ="

         
Capable for unlimited product
         
Two currency support
         
Works with touch screens and click screen based systems
         
Responsive design shopping cart, Specially design for Mac, iPhone, iPad, PC and Android
         
VAT for countries that support a Value Added Tax
         
Barcode scanner checkout option for POS
         
mRSS
       
";

preg_match("/^([A-Za-z0-9\s\<\>\.\,\/\-\ ]+)$/", $str);

// Sanitize your code before save to database.

function test_input($data) {
    $data = trim($data);
    $data = htmlspecialchars($data);
    $data = json_encode($data);
    $data = addslashes($data);
    return $data;
}

echo test_input($str);