寻找更好的multitype验证

Question

I need to check if variable is of specified scalar type - but I cannot use general function like is_scalar - because this would accept also those types (that type) I don't want to accept.

It is possible to check types step by step:

• with in-built functions like is_string
• with separate comparation of value given by gettype

but it is a bit incomfortable because it would give a very long code.

So, I prepared following (relatively short - if you ignore external parts) code:

!in_array(gettype($Item), MarC::Show_Options_Scalars())

where

function Show_Options_Scalars() represents allowed accepted scalar types.

That one prepares array of allowed types - from constants written in interface. That is why I wrote that own validation is relatively short if you ignore external parts.

And still I am not sure if multitype validation could be done better - it means if can I validate variable type by else better way. That external code is not reason why search for better multitype validation.

Answer 1

i like your code. i would only make a function for it

 function val( &$value ) {
    return !in_array( gettype( $value ), array( 'boolean', 'integer', 'what ever' ) );
 }

I use & to save some res.

useage:

if( val( $test ) ) die( 'pass' );