b-globals-reference.md

Appendix B - Globals Reference

PHP global variables used throughout WordPress Core.

• $blog_id

  Type: integer

  Set in: wp-settings.php 🔍

  Default value: 1

  Description: Current site ID.

• $required_mysql_version

  Type: string

  Set in: wp-settings.php 🔍

  Description: Holds the required MySQL version.

• $required_php_version

  Type: string

  Set in: wp-settings.php 🔍

  Description: Holds the required PHP version.

• $tinymce_version

  Type: string

  Set in: wp-settings.php 🔍

  Description: Holds the TinyMCE version.

• $wp_db_version

  Type: string

  Set in: wp-settings.php 🔍

  Description: Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.

• $wp_local_package

  Type: string

  Set in: wp-settings.php 🔍

• $table_prefix

  Type: string

  Set in: wp-config-sample.php 🔍

  Default value: 'wp_'

  Description: WordPress database table prefix. Must only contain numbers, letters, and underscores.

• $wp_version

  Type: string

  Set in: wp-settings.php 🔍

  Description: The WordPress version string.