EfunsStringsstringpOn this pagestringp NAME stringp() - determine whether or not a given variable is a string SYNOPSIS int stringp( mixed arg ); DESCRIPTION Return 1 if 'arg' is a string. SEE ALSO mapp(3), pointerp(3), objectp(3), intp(3), bufferp(3), floatp(3) func‐tionp(3), nullp(3), undefinedp(3)