fprintf
fprintf
(PHP 5, PHP 7)
fprintf — Write a formatted string to a stream
Description
int fprintf ( resource $handle , string $format [, mixed $args [, mixed $... ]] )
Write a string produced according to format to the stream resource specified by handle.
Parameters
Return Values
Returns the length of the string written.
Examples
Example #1 fprintf(): zero-padded integers
<?php
if (!($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
?> See Also
- printf() - Output a formatted string
- sprintf() - Return a formatted string
- sscanf() - Parses input from a string according to a format
- fscanf() - Parses input from a file according to a format
- vsprintf() - Return a formatted string
- number_format() - Format a number with grouped thousands
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/function.fprintf.php
