php rpath

The term "rpath" in PHP refers to the runtime library search path. It is used to specify the directories where the PHP runtime should look for shared libraries when executing a PHP script.

By default, PHP searches for shared libraries in the system's default library search paths, such as /usr/lib or /usr/local/lib. However, in some cases, you may want to specify additional directories to search for shared libraries.

To set the rpath in PHP, you can use the --with-rpath option during the configuration and installation process. For example:

./configure --with-rpath=/path/to/shared/libraries
make
make install

This will add the specified directory to the rpath of the PHP binary, allowing it to find shared libraries in that location at runtime.

Note that the --with-rpath option is only available when compiling PHP from source. If you are using a pre-compiled PHP binary, you may need to set the LD_LIBRARY_PATH environment variable to specify additional library search paths.

It's important to use caution when modifying the rpath, as it can affect the stability and security of your PHP installation. Make sure to only specify trusted directories where you know the required shared libraries are located.