catatan php

sprintf — Return a formatted string

Description
sprintf ( string $format [, mixed $... ] ) : string

Returns a string produced according to the formatting string format.

Variables will be co-erced to a suitable type for the specifier:
Type Handling Type     Specifiers
string                             s
integer                           d, u, c, o, x, X, b
double                           g, G, e, E, f, F