fprintf

fprintf

Write a formatted string to a stream

int **fprintf** resource $stream string $format mixed $values

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

stream``values

Returns the length of the string written.

Voorbeeld: : zero-padded integers

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

$year = 2005;
$month = 5;
$day = 6;

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

Voorbeeld: : formatting currency

<?php
if (!($fp = fopen('currency.txt', 'w'))) {
    return;
}

$money1 = 68.75;
$money2 = 54.35;
$money = $money1 + $money2;
// echo $money will output "123.1";
$len = fprintf($fp, '%01.2f', $money);
// will write "123.10" to currency.txt

echo "wrote $len bytes to currency.txt";
// use the return value of fprintf to determine how many bytes we wrote
?>

printf``sprintf``vprintf``vsprintf``vfprintf``sscanf``fscanf``number_format``date