PHP on i5/OS: A Whole New Stack
by Erwin Earley

Development and deployment of Web-based applications is one of the most common activities in today's IT world. For development of Web applications a development stack, consisting of an operating system platform, Web server, database engine, and scripting language is often employed. With the advent of PHP on i5/OS V5R4 and OS/400 V5R3, iSeries and System i customers have a whole new way to skin the Web cat while keeping their favored back-end system right in the thick of things. READ MORE >

Performance of Function Subprocedures
by Ted Holt

Last week, I wrote about performance issues when parameters are passed to subprocedures. This week, I write about a similar matter. If a subprocedure returns a value to the caller (i.e., the subprocedure serves as a function), the computer has to store the returned value somewhere in memory. The fact that the system must allocate memory for returned values means that performance may be affected. READ MORE >