Php fprintf () function

Write your php code

(PHP 5)

fprintf -- Write a formatted string to a stream

Syntax

int fprintf ( resource handle, string format [, mixed args [, mixed ...]] )

Write a string produced according to format to the stream resource specified by handle. format is described in the documentation for sprintf().

Returns the length of the outputted string.

Examples

Example 1. fprintf(): zero-padded integers


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

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

Example 2. fprintf(): 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
?>

Php fprintf Function syntax tag

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Php fprintf syntax tutorial

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