fprintf

Write a formatted string to a stream (PHP 5)
int fprintf ( resource handle, string format [, mixed args [, mixed ...]] )

Example 2409. fprintf(): zero-padded integers

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<?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 2410. fprintf(): formatting currency

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<?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
?>

Code Examples / Notes » fprintf

aidan

This functionality is now implemented in the PEAR package PHP_Compat. More information about using this function without upgrading your version of PHP can be found on the below link: http://pear.php.net/package/PHP_Compat

jgbreezer

Another alternative using sprintf and fwrite() for pre-v5 php's: fwrite( resource, sprintf(format [, mixed args [, mixed ...]] )) Barring slight logical differences in meaning of returned value and (maybe??) how it handles magic_quotes_runtime config option, see fwrite() help.

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