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Description

Functions to be called in installation and upgrade scripts.

Contains conditional checks to determine which upgrade scripts to run, based on database version and WP version being updated-to.

Usage

upgrade_all();

Parameters

Returns

void

Source

File name: wordpress/wp-admin/includes/upgrade.php
Lines:

function upgrade_all() {
  global $wp_current_db_version, $wp_db_version;

  $wp_current_db_version = __get_option( 'db_version' );

  // We are up to date. Nothing to do.
  if ( $wp_db_version == $wp_current_db_version ) {
    return;
  }

  // If the version is not set in the DB, try to guess the version.
  if ( empty( $wp_current_db_version ) ) {
    $wp_current_db_version = 0;

    // If the template option exists, we have 1.5.
    $template = __get_option( 'template' );
    if ( ! empty( $template ) ) {
      $wp_current_db_version = 2541;
    }
  }

  if ( $wp_current_db_version < 6039 ) {
    upgrade_230_options_table();
  }

  populate_options();

  if ( $wp_current_db_version < 2541 ) {
    upgrade_100();
    upgrade_101();
    upgrade_110();
    upgrade_130();
  }

  if ( $wp_current_db_version < 3308 ) {
    upgrade_160();
  }

  if ( $wp_current_db_version < 4772 ) {
    upgrade_210();
  }

  if ( $wp_current_db_version < 4351 ) {
    upgrade_old_slugs();
  }

  if ( $wp_current_db_version < 5539 ) {
    upgrade_230();
  }

  if ( $wp_current_db_version < 6124 ) {
    upgrade_230_old_tables();
  }

  if ( $wp_current_db_version < 7499 ) {
    upgrade_250();
  }

  if ( $wp_current_db_version < 7935 ) {
    upgrade_252();
  }

  if ( $wp_current_db_version < 8201 ) {
    upgrade_260();
  }

  if ( $wp_current_db_version < 8989 ) {
    upgrade_270();
  }

  if ( $wp_current_db_version < 10360 ) {
    upgrade_280();
  }

  if ( $wp_current_db_version < 11958 ) {
    upgrade_290();
  }

  if ( $wp_current_db_version < 15260 ) {
    upgrade_300();
  }

  if ( $wp_current_db_version < 19389 ) {
    upgrade_330();
  }

  if ( $wp_current_db_version < 20080 ) {
    upgrade_340();
  }

  if ( $wp_current_db_version < 22422 ) {
    upgrade_350();
  }

  if ( $wp_current_db_version < 25824 ) {
    upgrade_370();
  }

  if ( $wp_current_db_version < 26148 ) {
    upgrade_372();
 

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