Why Does PHP-CLI Use a Different `php.ini` File Than the Main PHP Interpreter?

PHP-CLI php.ini File Location

You may encounter an issue where the PHP command line (PHP-CLI) uses a different php.ini file from the main PHP interpreter. This can lead to inconsistencies and errors if you have customized the main php.ini file with additional library paths.

Identifying the PHP-CLI php.ini Location

To determine the exact location of the php.ini file used by PHP-CLI, you can execute the following command:

<code class="php">php -i | grep php\.ini</code>

This command will output information about your PHP installation, including the path to the php.ini file used by PHP-CLI. The output will be similar to the following:

Configuration File (php.ini) Path: /usr/local/etc/php/7.4/php.ini

Example

Suppose your Ubuntu 10.4 system's main php.ini file is located at "/etc/php5/apache2/php.ini." However, the PHP-CLI command is using a different php.ini file at "/usr/local/etc/php/7.4/php.ini." This means additional library paths you have included in "/etc/php5/apache2/php.ini" will not be available to PHP-CLI.

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