hi

i need to validate a field in a form where a user enters their lodgement number as part of a registration form. this lodgement number can have letters, numbers, spaces and special characters. i do not know exactly what those special characters are, so do i have to define the type of special characters and validate accordingly.

presently my php code for validating the lodgement number is

$lodgementtf = $_POST["lodgementtf"];

if($lodgementtf == "" || !preg_match("/[a-zA-Z0-9_ <]+$/", $lodgementtf) )
{
echo "display error message":
}

i also have another way of validating

if($lodgementnumber == "" || !preg_match("/[a-zA-Z0-9_ !-@£$%&*()]+$/", $lodgementnumber) )

does this mean that the special characters can only be = a space AND _!-@£$%&*() and no other special characters.

please advice.

thanks.

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