How do I delete files within a temp folder at only have the .jpg extension.
Here is what I tried;
unlink("../httpdocs/Temp/*.jpg);
You need to apply the glob function to the pattern, for example:
unlink glob "../httpdocs/Temp/*.jpg";
This is covered in the unlink and glob docs. Unlink itself expects a list of files to process. The glob function will, to quote the docs:
In list context, returns a (possibly empty) list of filename expansions on the value of EXPR such as the standard Unix shell /bin/csh would do.