Generating letters - HELP

[PHPrev]

Can someone tell me how to do following

 

For example

 

I have word "house" [without quotes] and I want to make it to looks like this h*o*u*s*e*

 

I want code to insert * in any word I want

 

Thanks!

[wildteen88]

$word = 'house';

$newWord = '';

for($i = 0; $i <= strlen($word); $i++)
{
    $newWord .= $word{$i}.'*';
}

echo $newWord;

 

[Mark Baker]

$string = 'house';

$string = implode('*',explode($string));