Use placeholders in fprintf in PHP
Description
The following code shows how to use placeholders in fprintf.
Example
//ww w .j av a2 s .co m
<?php
$number = 123.24;
$file = fopen("test.txt","w");
fprintf($file,"With 2 decimals: %1\$.2f\nWith no decimals: %1\$u",$number);
?>