note 97535 deleted from function.strlen by danbrown

Note Submitter: php at bucksvsbytes dot com ---- As noted below (01-Jul-2007), you can use strlen() to determine if an expression has content, i.e. is anything (including object, array, resource) other than null or the empty string. This works because, for non-strings, strlen() returns the length of the string conversion of the expression, so it is non-zero for most non-strings: strlen($array)=5 because (string)@array='Array' strlen($resource) is about 14 because (string)$resource is of the form 'Resource id #9' Exception: strlen($object) causes a fatal error unless the class has the __toString method defined, so you have to test is_object($object) before strlen(). Result: (is_object($expression)||strlen($expression)) is false only if $expression is null or the empty string