If you try to use the 'Embedded Ingres' as it is delivered with certain CA products (e.g. TNG UHD), the referenced library '-lingres' is not available. You need to add '-lq -lframe' instead.
LVIII. Ingres II Functions
These functions allow you to access Ingres II database servers.
To compile PHP with Ingres support, you need the Open API library and header files included with Ingres II.
In order to have these functions available, you must compile PHP with Ingres support by using the --with-ingres[=DIR] option, where DIR is the Ingres base directory, which defaults to /II/ingres. If the II_SYSTEM environment variable isn't correctly set you may have to use --with-ingres=DIR to specify your Ingres installation directory.
When using this extension with Apache, if Apache does not start and complains with "PHP Fatal error: Unable to start ingres_ii module in Unknown on line 0" then make sure the environment variable II_SYSTEM is correctly set. Adding "export II_SYSTEM="/home/ingres/II" in the script that starts Apache, just before launching httpd, should be fine.
这些函数的行为受 php.ini 的影响。
有关 PHP_INI_* 常量进一步的细节与定义参见附录 G。
表格 1. Ingres II configuration options
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