xslt - xsl param fails in PHP 5.3x -

I have PHP PHP 5.3, which is some its content.

For reference, I make an XSL change on a DOMDocument and insert the results into a second DOMDocument as a parameter which then gets converted. It has worked fine till now.

  & lt; H5 & gt; Gives: & lt; Xsl: Select value = "string-length ($ content)" /> & Lt; / H5>  

returns 0.

  $ content  

is the ultimate name.

In my PHP, I can work it for a thousand times, but for some reason on this occasion it fails to put only one thousand names in an HTML table. If I swap names for something else Autoincrement ID then it works fine.

I do not have any double / single quote problems, because everything is run through a cleanup utility and I manually go through the data and delete the alpha numeric characters .

What is the maximum length / size with the XLL param?