Initialize WordPress environment to use in command line script

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I have a command line script for maintaining a wordpress plugin and have to load the wordpress core to be able to access wordpress functions.

This problem is very similar to Initialize WordPress environment to use in a real cron script. Though it differs from it as the referred question is supposed for use with a (real) cron script which can be accomplished otherwise then by starting a command line php script. As the referred question is already answered and this answer is not satisfying my needs I started this question.

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So what it is necessary in a command line script to initialize the wordpress environment?

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2 comments

  1. I came up with following solution. The script have to start with the following code.

    <?php
    if( php_sapi_name() !== 'cli' ) {
        die("Meant to be run from command line");
    }

    function find_wordpress_base_path() {
        $dir = dirname(__FILE__);
        do {
            //it is possible to check for other files here
            if( file_exists($dir."/wp-config.php") ) {
                return $dir;
            }
        } while( $dir = realpath("$dir/..") );
        return null;
    }

    define( 'BASE_PATH', find_wordpress_base_path()."/" );
    define('WP_USE_THEMES', false);
    global $wp, $wp_query, $wp_the_query, $wp_rewrite, $wp_did_header;
    require(BASE_PATH . 'wp-load.php');

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  2. If you don’t want to deal with the messy process of loading WordPress manually, you can just use WP-CLI‘s eval-file command:

    wp eval-file my-script.php

    The my-script.php file can contain any WP function call. For example:

    <?php
global $wpdb;

echo implode( ' ', $wpdb->tables() ) . "n";