php: '0' as a string with empty()

Question

I want a 0 to be considered as an integer and a \'0\' to be considered as a string but empty() considers the \'0\' as a string in the example below,

$var = \         


        

Answer 1

You can not, because integer,string,float,null does not matter for PHP.

Because it is cool :)

You must check characteristic features your variable is_numeric,isset,===,strlen, etc.

For example:

if (strlen(@$var)==0) {
    echo @$var . ' is empty';
}

or

if (@$var==="" || !isset($var)) {
    echo @$var . ' is empty';
}

or other examples :)

thanks for reading.