Subreport with parameter and data source not working to be display

[lvsan]

Hi, I try to migrate my php 5 to php 7 and the reports that I using under ireport not able
to us ethe old class. therefore I download the latest class for the PHPjasperXML.

However, i have change the port number for my mysql. the conection to the db is ok but the subreport never show under php.

Can help why this is happen since I have use the sample also not working .

Thanks.

[lvsan]

i have try to pass the parameter into the subreportexpression but still not working. can advise whats going on?
I have try the sample3 and this is working but when I try to copy these into my folder, but the subreport will not working at all.