如何修复Cassandra PHP驱动安装时的ini文件缺失及编译错误

Let's walk through solutions for both of the problems you're facing when setting up the Cassandra PHP driver.

1. Resolving "WARNING: Module cassandra ini file doesn't exist under /etc/php/7.1/mods-available" #

This warning pops up because the PHP module configuration file for Cassandra isn't present in the expected directory. Here's how to fix it:

• First, create the missing cassandra.ini file in the mods-available directory:

  echo "extension=cassandra.so" | sudo tee /etc/php/7.1/mods-available/cassandra.ini
  

• Enable the module for PHP 7.1 specifically:

  sudo phpenmod -v 7.1 cassandra
  

• Restart your web server or PHP-FPM to apply the changes (use the command matching your setup):

  # For Apache
  sudo systemctl restart apache2
  # For PHP-FPM
  sudo systemctl restart php7.1-fpm
  

• Verify the module is loaded by running:

  php -m | grep cassandra
  

  If you see cassandra in the output, the warning should be resolved.

2. Fixing "cannot open /include/cassandra.h" and "Driver version 2.7.0+ required" Errors #

These errors stem from a missing or outdated Cassandra C/C++ Driver (libcassandra), which the PHP driver depends on. Follow these steps to fix it:

• First, clean up any partial installations of the PHP driver:

  sudo apt-get purge --auto-remove cassandra-php-driver
  

• Add the DataStax repository to access the correct version of the C driver:

  echo "deb https://debian.datastax.com/community stable main" | sudo tee /etc/apt/sources.list.d/datastax.list
  curl -L https://debian.datastax.com/debian/repo_key | sudo apt-key add -
  sudo apt-get update
  

• Install the required C driver packages (ensure version ≥2.7.0):

  sudo apt-get install libcassandra-dev libcassandra2
  

• Confirm the installed version meets the requirement:

  dpkg -l libcassandra2 | grep Version
  

• Now reinstall the Cassandra PHP driver deb package you downloaded (replace the path with your actual file location):

  sudo dpkg -i /path/to/cassandra_php_driver-v1.3.2-ubuntu16.04_amd64.deb
  

• If you still run into issues, try installing via PECL instead (often more reliable for module setup):

  # Install build dependencies first
  sudo apt-get install php7.1-dev gcc make
  # Install the driver via PECL
  sudo pecl install cassandra
  

  After this, repeat the steps from the first problem to create and enable the ini file.

内容的提问来源于stack exchange，提问作者Abhishek