Testing for data type and string lenght

[dcjones]

Hi all.

I need to test to see if the data in a var is a number and the string lenght but my code is not producing the results I expect. I must be doing this wrong. My code should look to see it $Estimated is a number and the lenght is only 4 characters.

Can anyone see where I am going wrong.

$edt = trim($Estimated);

if(ctype_digit($edt) && strlen($Estimated  == 4)) 

{

// do somethig

}

[bradgrafelman]

Your problem is here:

strlen($Estimated  == 4)

[man]strlen/man expects the argument to be a string, but look at the argument:

$Estimated  == 4

that expression will result in a boolean value (true or false, depending whether or not $Estimated is equal to 4). Thus you're passing [man]strlen/man either true or false.