How to write SAP ABAP web service and consume it in PHP

Last time i spend lot of time to develop SAP ES webservices connected to PHP. Why PHP? Because PHP was fastest method for me. Without starting do it in Java/Tomcat. But now i thing Tomcat will be better… I want o share some information about my work with SAP webservices. At the beginning most time

Last time i spend lot of time to develop SAP ES webservices connected to PHP. Why PHP? Because PHP was fastest method for me. Without starting do it in Java/Tomcat. But now i thing Tomcat will be better… I want o share some information about my work with SAP webservices.

At the beginning most time I spent on configure SAP basis problems with web-services. Roles setting ect.

Basic information about SAP and PHP configuration

SAP ABAP – development
1. Destination typu „G” InAcT (SM59) (otwarty na konkretny skrypt PHP)
2. Embedded pakiet ZIPSZWEBSERVICES
3. Function RFC (external) ZWEBSERV_INACT
4. Logs ‘BAL_LOG_MSG_ADD’ + view data by IW33 (Tr. SLG1)
5. Enterprise Serwis: Z_WEBSERV_PM3
SAP AS
1. Define webserwis SAP WSLD
How it works in SAP?
1. Simple JOB fill public table named: ZWEBSRV_PM in procedure Z_JOB_FILL_ZWEBSRV_PM (call with variant
Security
1. Communication by HTTPS (simple but effective in corp. environment)
InAcT – server Windows x64 2012 R1 (planned migrate do Linux)
1. Server Apache 2.4/PHP 5.3 (+biblioteka SOAP)
2. Skrypt PHP index.php
3. Windows job scheduler call PHP http://SOAP/index.php

Basic information about run and start web services in SAP

SAP Note 1300943
Transport web-services SAP Note (need password) no. 1300943

PHP implementation

Apache 2.4/PHP 5.6 (now 7)
Enable SOAP, XML in php.ini config file
- The SoapClient class provides a client for » SOAP 1.1, » SOAP 1.2 servers à [PHP_SOAP] extension=php_soap.dll
Przykład kodu wywołania SOAP AS SAP z poziomu PHP

$WSDL = "http://xxx.pl:8000/sap/bc/srt/wsdl/bndg_52B09DB8E7B611E0E10080000A150CAA/soap11/wsdl11/allinone/standard/document?sap-client=030"; 
$SOAP_CLIENT_PARAM = array('login' => 'WEBSERVICES', 'password' => *********', 'trace' => true, 'exceptions' => true); 
$soapClient = new SoapClient($WSDL, $SOAP_CLIENT_PARAM); 
$soapReturn = $soapClient->ZWebservPm3(array('P_ZIPSISTAT','P_ZIPSESTAT'));

SAP implementation

Włączenie webswerwisów na ERP
Konfiguracja oraz Noty
Zdefiniowanie modułu funkcyjnego
1. Typu RFC
2. Gdzie parametry przekazywane są przez wartość – Pass Values
Zdefiniowanie webserwisu
1. Utworzenie Enterprise Service
2. Service Provider
3. Existing ABAP Objects
Function Module
W wyniku powstaje webserwis i definicja webserwisu plik WSLD.
Należy zdefiniować PROXY w SOAMANAGER.
1. Provider Security
2. Configuration of Web Service Binding
3. SSL
4. Secure Coversation
5. Authentitaction Setings
6. User/ID Password
7. WSDL Generation
8. WSDL Format – Standard
9. Binding SOAP Version – SOAP 1.1
10. Przy takich ustawieniach generowany jest WSLD .

What next?

Zdefiniowanie i wykorzystanie JMS http://en.wikipedia.org/wiki/Java_Message_Service
UUDI http://en.wikipedia.org/wiki/Universally_unique_identifier
Poprawa bezpieczeństwa przez szyfrowanie komunikatów (HTTPS/SSL).
Przejście na klienta JAVA.