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© All rights reserved. Zend Technologies, Inc.
PHP on IBM i RPG Examples
Mike Pavlak
Solution Consultant
© All rights reserved. Zend Technologies, Inc.
Agenda
•Open Source Toolkit
•RPG Program Calls
•Stored Procedures
•Q&A
2
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Zend Server 7 for IBM i
Key Features
Z-Ray (Like Firebug for PHP)
Server Dashboards
Code libraries
Much more!
3
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RPG Examples
www.zend.com
Introduction to PHP
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PHP is a Scripting Language PHP Hypertext Pre-Processor
Developed initially by Rasmus Lerdorf in 1994: PHP/FI
Zeev Suraski and Andi Gutmans Contributing since1997+ (ZEev + aNDi = Zend)
Interpreted, not compiled
Forgiving and intuitive code structure (Short learning curve)
Immediate feedback during development
PHP is to Java what RPG is to COBOL
| 5 Geting Started with PHP on IBM i
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What Is Zend Server? • Production quality PHP stack
PHP, ZF, DB connectivity, debugging extension, and more
• Three Editions – No charge “Basic Edition” provided by IBM & Full Professional and Enterprise commercial edition
All are production ready
• Application monitoring and diagnostics (integrated with Zend Studio)
• Multi-level performance enhancement capabilities
• Software updates and security hot fixes
• Easy and quick installation
• Zend Framework Integration
| 6 Geting Started with PHP on IBM i
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Zend Server
Zend Server Under the Covers
HTTP:10080 Apache Server (FastCGI)
IBM i
i/OS
DB2 UDB
PHP CGI
PHP file PASE
*PGM
CMD
ILE Apache:10080 • Default
configuration FastCGI
URL Request
HTML/response
| 7 Geting Started with PHP on IBM i
MySQL, SQL Server,
Oracle
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Sample Scripts! (http://IBMi:10080/samples )
| 8 Geting Started with PHP on IBM i
© All rights reserved. Zend Technologies, Inc. | | 9 Geting Started with PHP on IBM i
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Sample Script – Hello World • Obligatory program when starting out
• Confirms correct setup of PHP
• Sample code: (Shortest PHP Macro around!)
• Save script in IFS /www/zendsvr6/htdocs /helloworld.php
• Browser URL: http://ibmisystem:10080/helloworld.php
| 10 Geting Started with PHP on IBM i
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11 Geting Started with PHP on IBM i
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Basic file listing script (Update) • Connect to DB2 i
• Select records from a DB2 table
• Load the records in an HTML table
02/03/10
| 12 Geting Started with PHP on IBM i
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Connection to DB2 for i (Update) • Need three things:
System
User ID
Password
02/03/10
Note: If your data sets have *PUBLIC access, no user or password is required
| 13 Geting Started with PHP on IBM i
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Reading data...(Update) Loop through record set
02/03/10
| 14 Geting Started with PHP on IBM i
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Basic file listing script (Update)
02/03/10
| 15 Geting Started with PHP on IBM i
© All rights reserved. Zend Technologies, Inc.
RPG Examples
www.zend.com
Open Source Toolkit
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What is the toolkit?
•Set of classes that access IBM i native artifacts
•All Program Objects
RPG, COBOL, CL, etc.
•Others
Command processor
Data Queue’s
Spooled File
More…
•Access naturally from PHP code. No SP’s required
•Easy to use
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New toolkit is Object Oriented
•Series of classes that “wrap” the IBM project
•All PHP but Object Oriented…(wait, there’s more!)
•Zend built the PHP wrapper
•No OO training required to use them!!!
•Sam Pinkhasov, Zend
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XML Service
• IBM has open sourced XMLService.
•First Open Source project on IBM i. (that I know of…)
•Made up of RPG, CL and DB2 stored procedures (SQL)
•Tony Cairns, IBM Rochester
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XML Service
•Cross platform
•Language agnostic
•Basic plumbing for all open source languages
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Compatibility Wrapper
• Intercepts existing i5 function requests
•Written in pure PHP
•Passes them on to OO PHP which then…
•Passes on to XML Service
•Alan Seiden, SBS & alanseiden.com
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Source Code for XML Service on YiPs…
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•http://youngiprofessionals.com/
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Source Code for PHP Toolkit on GitHub…
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•https://github.com/zendtech/IbmiToolkit
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PHP Classes
•Class where all wrapper functions start
Yes, this is OO but not too bad…
Look at it and poke around, It’s OK!
This is why we need the path set correctly
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Housekeeping…
•Need to set the extension and instantiate the object
Singleton pattern
Try & Catch
Can put this in your own include
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Now the program call
•Set parameters based on function
Call program
Output results
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I/O
Length
Comment
Var name
Init val
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AddParameterChar •Located in ToolkitService.php
/usr/local/zendsvr/share/ToolkitAPI
Uses CharParam which extends ProgramParam, etc…
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Before and after…Part 1 •Existing code call
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Before and after…Part 2 •New Open Source Toolkit program call
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Additional Parameter Types
• AddParameterInt32($io, $comment, $varName, $value, $dimension)
• AddParameterInt64($io, $comment, $varName, $value, $dimension)
• AddParameterUInt32($io, $comment, $varName, $value, $dimension)
• AddParameterUInt64($io, $comment, $varName, $value, $dimension)
• AddParameterFloat ($io, $comment, $varName, $value, $dimension)
• AddParameterReal($io, $comment, $varName, $value, $dimension)
• AddParameterPackdec($io, $length, $scale, $comment, $varName, $value, $dimension)
• AddParameterZoned($io, $length, $scale, $comment, $varName, $value, $dimension)
• AddParameterBin($io, $size, $comment, $varName, $value, $dimension)
• AddDataStruct($array, $parameters, $name=‘struct_name’, $dim, $by, $isArray, $labelLen)
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RPG Examples
www.zend.com
Stored Procedure - Array
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Now an array
Data elements are nice, but…
Sometimes you need a little more…
How about an array of information?
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Have RPG build an array and use SQL…
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SQL to create the SP & test in iNav CREATE PROCEDURE mpavlak/rpgsp2() LANGUAGE RPGLE
EXTERNAL NAME mpavlak/rpgsp2 GENERAL
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Test it in iNav…
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Now open results in PHP…
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Results in browser…
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RPG Examples
www.zend.com
Stored Procedure – Record Set
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Have RPG build the result set and use SQL…
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SQL to create the SP & test in iNav CREATE PROCEDURE mpavlak/rpgsp3() LANGUAGE RPGLE
EXTERNAL NAME mpavlak/rpgsp3 GENERAL
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Now open results in PHP…
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Results in browser…
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Zend Server Update
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Command processing & *libl
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Several ways to call commands…
•$conn->CLCommand(‘my command’);
•$conn->CLInteractiveCommand(‘DSP… command’);
•$conn->CLCommandWithOutput(‘RTV… command’);
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Other uses for the toolkit
•Command processing
Call CL command directly from toolkit
Retrieve response from command call
•Example
DSPLIBL
CHGLIBL
DSPLIBL
Useful for managing access to resource
• Files & Programs from RPG
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PHP Code
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Zend Server Update
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Pricing Example
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Standard line discount
•RPG is black box, callable from nearly anywhere
•PHP has function to contain RPG call
•Routine to spin through line call for each quantity
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Mainline of code
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CalcDiscount() Part 1
•Setup session for user-RPG program dedication
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CalcDiscount() Part 2 •Create object, etc.
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CalcDiscount() Part 3 •Call program
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Zend Server Update
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Miscellaneous Toolkit Points
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What was passed?
•Toolkit.ini setting
Debug = TRUE
•Turns on DebugOutput file
debugLogFile = "/usr/local/zendsvr/share/ToolkitApi/debug.log“
•Many other directive settings here
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Contents of output
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Stateful processing
•IPC
•Use session ID, for example • $PHPToolkitObj->setToolkitServiceParams ( array ('InternalKey' => "/tmp/$user" ) );
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Zend Server Update
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Wrap it up
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Join us at
ZendCon Advancing the World of PHP
Conference Highlights
● Sessions designed for all knowledge levels
● Intensive tutorials for accelerated learning
● UnConference sessions for expanded topics
● PHP Certification crash course and 50% discount on certification exams
● Exhibit hall showcasing the latest products
● Networking opportunities with PHP community members and thought-leaders from around the world
w w w . z e n d c o n . c o m
Conference Tracks
● PHP Best Practices & Tooling Take home the latest tips and techniques for high-quality PHP apps
● Continuous Delivery & DevOps Explore best practices for high-velocity application delivery
● Application Architecture - APIs, Mobile, Cloud Services Learn how to harness the server-side and client-side revolutions
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Q&A
www.zend.com
Please fill out your Session Evaluation!