Strings
PHP Manual

vfprintf

(PHP 5)

vfprintf — Write a formatted string to a stream

说明

int vfprintf ( resource $handle , string $format , array $args )

Write a string produced according to format to the stream resource specified by handle .

Operates as fprintf() but accepts an array of arguments, rather than a variable number of arguments.

参数

handle

format

See sprintf() for a description of format .

args

返回值

Returns the length of the outputted string.

范例

Example#1 vfprintf(): zero-padded integers

<?php
if (!($fp fopen('date.txt''w')))
    return;

vfprintf($fp"%04d-%02d-%02d", array($year$month$day));
// will write the formatted ISO date to date.txt
?>

参见


Strings
PHP Manual