Storing a Formatted String

 
<?php
$dosh = sprintf("%.2f", 2.334454);
print "$dosh dollars";
?>

1.	Using a sprintf()-style message catalog
2.	Using sprintf with a variable
3.	Using sprintf() to ensure that one digit hex numbers (like 0) get padded with a leading 0.
4.	sprintf print values to a string
5.	sprintf()'s built-in hex-to-decimal conversion with the %x format character
6.	Integral that the value be displayed as a dollar amount set to two decimal places:
7.	integer displayed as a dollar amount set to two decimal places
8.	Wrap these in a couple of functions and surround the joined array elements with parentheses

Storing a Formatted String : sprintf « String « PHP