Note: This manual is provided for your convenience only - this is not the official source and may not be 100% up to date.
XXIII. DB++ Functions
db++, made by the German company Concept asa, is a relational database system with high performance and low memory and disk usage in mind. While providing SQL as an additional language interface, it is not really a SQL database in the first place but provides its own AQL query language which is much more influenced by the relational algebra than SQL is.
Concept asa always had an interest in supporting open source languages, db++ has had Perl and Tcl call interfaces for years now and uses Tcl as its internal stored procedure language.
This extension relies on external client libraries so you have to have a db++ client installed on the system you want to use this extension on.
In order to build this extension yourself you need the db++ client libraries
and header files to be installed on your system (these are included in the
db++ installation archives by default). You have to run
configure with option
configure looks for the client libraries and header files
under the default paths /usr/dbplus,
/usr/local/dbplus and /opt/dblus.
If you have installed db++ in a different place you have add the installation
path to the configure option like this:
This extension has no configuration directives defined in php.ini.
Most db++ functions operate on or return
The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.
Table 1. DB++ Error Codes