FPRINTF(3) 1 FPRINTF(3)
fprintf - Write a formatted string to a stream
SYNOPSIS
int fprintf (resource $handle, string $format, [mixed $args], [mixed $...])
DESCRIPTION
Write a string produced according to $format to the stream resource specified by $handle.
PARAMETERS
o $handle
-A file system pointer resource that is typically created using fopen(3).
o $format
- See sprintf(3) for a description of $format.
o $args
-
o $...
-
RETURN VALUES
Returns the length of the string written.
EXAMPLES
Example #1
fprintf(3): zero-padded integers
<?php
if (!($fp = fopen('date.txt', 'w'))) {
return;
}
fprintf($fp, "%04d-%02d-%02d", $year, $month, $day);
// will write the formatted ISO date to date.txt
?>
Example #2
fprintf(3): formatting currency
<?php
if (!($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
?>
SEE ALSO
printf(3), sprintf(3), sscanf(3), fscanf(3), vsprintf(3), number_format(3).
PHP Documentation Group FPRINTF(3)
