is_string Find whether the type of a variable is string &reftitle.description; boolis_string mixedvar Finds whether the type given variable is string. &reftitle.parameters; var The variable being evaluated. &reftitle.returnvalues; Returns &true; if var is of type string, &false; otherwise. &reftitle.examples; ]]> &example.outputs; &reftitle.seealso; is_float is_int is_bool is_object is_array