xsltProcessor setParameter : send an undefined number of params

Question

I have an XSL file.

I have a PHP file with a XSLTProcessor named $bob.

I want to send to my xsl transformation some parameters.

So, I write

Answer 1

How about concatenation in PHP?

$bob->setParameter("", "message", "Hi:it's bob:How are you ?");

and tokenization in XSLT code: