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<!DOCTYPE html>
<html>
<body>
​
<?php
$str1 = "Hello";
$str2 = "Hello world!";
​
vprintf("[%s]<br>",array($str1));
vprintf("[%8s]<br>",array($str1));
vprintf("[%-8s]<br>",array($str1));
vprintf("[%08s]<br>",array($str1)); 
vprintf("[%'*8s]<br>",array($str1));
vprintf("[%8.8s]<br>",array($str2)); 
?>
​
</body>
</html>
​
[Hello]
[ Hello]
[Hello ]
[000Hello]
[***Hello]
[Hello wo]