getTypeOf( $mixed)
dump( $mixed)
isObject( $mixed)
isException( $mixed)
isBoolean( $mixed)
isInteger( $mixed)
isFloat( $mixed)
isString( $mixed)
isUtf8( $mixed)
isArray( $mixed)
isResource( $mixed)
isRegex( $namespace)
isValidIdentifier( $identifier)
isValidNamespace( $namespace)