[SOLVED] What is sprintf

[AdRock]

I have been trying to teach myself OOP in php and it looks pretty straightforward but the small examples look a bit longwinded when you could do it simpler but I can see it's uses.

Anyway, one example i was reading through used the sprintf() function.

I looked at what it does but i don't really understand it. I went to the w3schools website and found this function

PHP: Select all

<?php
$str = "Hello";
$number = 123;
$txt = sprintf("%s world. Day number %u",$str,$number);
echo $txt;
?>

Now the output i was expecting was "Hello world. Day number Hello123"

This is becuase the variable $str is before $number. Why doesn't it do as i expect?

[c010depunkk]

Try this:

PHP: Select all

   <?php
$format = 'The %2$s contains %1$d monkeys';
echo(sprintf($format, $num, $location));
// OR
printf($format, $num, $location);
?>

And check out the documentation here.