vfprintf

(PHP 5, PHP 7)

Write a formatted string to a stream

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.

Parameters:

handle

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.

format

See sprintf() for a description of format.

args

See sprintf() for a description of format.

Returns:

Returns the length of the outputted string.

Examples:

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
?>