WP Install Defaults - Dropin Plugin

install.php

<?php

!defined( 'ABSPATH' ) AND exit;
/*
  Plugin Name: Custom Installation Script
  Plugin URI: http://wordpress.stackexchange.com/q/75420/12615
  Description: Create our own content on WP install
  License: GPL
 */

/**
 * Plugin auto-activation function
 *
 * http://wordpress.stackexchange.com/q/4041/12615
 */
function wpse_4041_run_activate_plugin( $plugin )
{
    $current = get_option( 'active_plugins' );
    $plugin  = plugin_basename( trim( $plugin ) );

    if( !in_array( $plugin, $current ) )
    {
        $current[] = $plugin;
        sort( $current );
        do_action( 'activate_plugin', trim( $plugin ) );
        update_option( 'active_plugins', $current );
        do_action( 'activate_' . trim( $plugin ) );
        do_action( 'activated_plugin', trim( $plugin ) );
    }

    return null;
}


/**
 * Overriding WordPress custom install defaults
 * Removed ALL Multisite functionality from the original wp_install_defaults()
 *
 * http://wordpress.stackexchange.com/a/75436/12615
 */
function wp_install_defaults( $user_id )
{
    global $wpdb, $wp_rewrite, $current_site, $table_prefix;

    // Default category
    $cat_name = __( 'My custom WP install' );
    $cat_slug = sanitize_title( _x( 'My custom WP install', 'Default category slug' ) );

    if( global_terms_enabled() )
    {
        $cat_id = $wpdb->get_var( 
                $wpdb->prepare( 
                        "SELECT cat_ID FROM {$wpdb->sitecategories} WHERE category_nicename = %s", 
                        $cat_slug 
                ) 
        );
        if( $cat_id == null )
        {
            $wpdb->insert( 
                    $wpdb->sitecategories, 
                    array( 
                            'cat_ID'            => 0, 
                            'cat_name'          => $cat_name, 
                            'category_nicename' => $cat_slug, 
                            'last_updated'      => current_time( 'mysql', true ) 
                            ) 
                    );
            $cat_id             = $wpdb->insert_id;
        }
        update_option( 'default_category', $cat_id );
    }
    else
    {
        $cat_id = 1;
    }

    $wpdb->insert( 
            $wpdb->terms, 
            array( 
                    'term_id'    => $cat_id, 
                    'name'       => $cat_name, 
                    'slug'       => $cat_slug, 
                    'term_group' => 0 
                    ) 
            );
    $wpdb->insert( 
            $wpdb->term_taxonomy, 
            array( 
                    'term_id'     => $cat_id, 
                    'taxonomy'    => 'category', 
                    'description' => '', 
                    'parent'      => 0, 
                    'count'       => 1 
                    ) 
            );
    $cat_tt_id    = $wpdb->insert_id;

    // Default link category
    $cat_name = __( 'Blogroll' );
    /* translators: Default link category slug */
    $cat_slug = sanitize_title( _x( 'Blogroll', 'Default link category slug' ) );

    if( global_terms_enabled() )
    {
        $blogroll_id = $wpdb->get_var( 
                $wpdb->prepare( 
                        "SELECT cat_ID FROM {$wpdb->sitecategories} WHERE category_nicename = %s", 
                                $cat_slug 
                ) 
        );
        if( $blogroll_id == null )
        {
            $wpdb->insert( 
                    $wpdb->sitecategories, 
                    array( 
                            'cat_ID'            => 0, 
                            'cat_name'          => $cat_name, 
                            'category_nicename' => $cat_slug, 
                            'last_updated'      => current_time( 'mysql', true ) 
                            ) 
                    );
            $blogroll_id        = $wpdb->insert_id;
        }
        update_option( 'default_link_category', $blogroll_id );
    }
    else
    {
        $blogroll_id = 2;
    }

    $wpdb->insert( 
            $wpdb->terms, 
            array( 
                    'term_id'    => $blogroll_id, 
                    'name'       => $cat_name, 
                    'slug'       => $cat_slug, 
                    'term_group' => 0 
                    ) 
            );
    $wpdb->insert( 
            $wpdb->term_taxonomy, 
            array( 
                    'term_id'       => $blogroll_id, 
                    'taxonomy'      => 'link_category', 
                    'description'   => '', 
                    'parent'        => 0, 
                    'count'         => 7 
                    ) 
            );
    $blogroll_tt_id = $wpdb->insert_id;

    // Now drop in some default links
    $default_links = array( );
    $default_links[] = array( 
            'link_url'   => __( 'http://wordpress.stackexchange.com/' ),
            'link_name'  => __( 'WordPress Answers' ),
            'link_rss'   => '',
            'link_notes' => '' );

    foreach( $default_links as $link )
    {
        $wpdb->insert( $wpdb->links, $link );
        $wpdb->insert( 
                $wpdb->term_relationships, 
                array( 
                        'term_taxonomy_id' => $blogroll_tt_id, 
                        'object_id'        => $wpdb->insert_id 
                ) 
        );
    }

    // First post
    $now             = date( 'Y-m-d H:i:s' );
    $now_gmt         = gmdate( 'Y-m-d H:i:s' );
    $first_post_guid = get_option( 'home' ) . '/?p=1';
	$blogname = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
    $first_post = __( 'Welcome to <a href="SITE_URL">SITE_NAME</a>. This is your first post. Edit or delete it, then start blogging!' );
	$first_post = str_replace( "SITE_URL", esc_url( home_url() ), $first_post );
	$first_post = str_replace( "SITE_NAME", $blogname, $first_post );

    $wpdb->insert( $wpdb->posts, array(
            'post_author'           => $user_id,
            'post_date'             => $now,
            'post_date_gmt'         => $now_gmt,
            'post_content'          => $first_post,
            'post_excerpt'          => '',
            'post_title'            => __( 'Hello world!' ),
            /* translators: Default post slug */
            'post_name'             => sanitize_title( _x( 'hello-world', 'Default post slug' ) ),
            'post_modified'         => $now,
            'post_modified_gmt'     => $now_gmt,
            'guid'                  => $first_post_guid,
            'comment_count'         => 1,
            'to_ping'               => '',
            'pinged'                => '',
            'post_content_filtered' => ''
    ) );
    $wpdb->insert( 
            $wpdb->term_relationships, 
            array( 
                    'term_taxonomy_id' => $cat_tt_id, 
                    'object_id'        => 1 
            ) 
    );

    // Default comment
    $first_comment_author = __( 'Visitor' );
    $first_comment_url    = 'http://example.com/';
    $first_comment        = __( 'My first modified comment.' );
    $wpdb->insert( $wpdb->comments, array(
            'comment_post_ID'      => 1,
            'comment_author'       => $first_comment_author,
            'comment_author_email' => '',
            'comment_author_url'   => $first_comment_url,
            'comment_date'         => $now,
            'comment_date_gmt'     => $now_gmt,
            'comment_content'      => $first_comment
    ) );

    // First Page
    $first_page = sprintf( __( "Lorem ipsum lorem:

<blockquote>non sequitur</blockquote>

And:

<blockquote>more lorem ipsum.</blockquote>

Go to <a href=\"%s\">your dashboard</a> to delete this page and have fun!" ), admin_url() );

    $first_post_guid = get_option( 'home' ) . '/?page_id=2';
    $wpdb->insert( $wpdb->posts, array(
            'post_author'           => $user_id,
            'post_date'             => $now,
            'post_date_gmt'         => $now_gmt,
            'post_content'          => $first_page,
            'post_excerpt'          => '',
            'post_title'            => __( 'Sample Page' ),
            /* translators: Default page slug */
            'post_name'             => __( 'sample-page' ),
            'post_modified'         => $now,
            'post_modified_gmt'     => $now_gmt,
            'guid'                  => $first_post_guid,
            'post_type'             => 'page',
            'to_ping'               => '',
            'pinged'                => '',
            'post_content_filtered' => ''
    ) );
    $wpdb->insert( 
            $wpdb->postmeta, 
            array( 
                    'post_id'    => 2, 
                    'meta_key'   => 
                    '_wp_page_template', 
                    'meta_value' => 'default' 
            ) 
    );

    // Set up default widgets for default theme.
    update_option( 'widget_search', 
            array( 
                    2 => array( 
                            'title'        => '' 
                            ), 
                    '_multiwidget' => 1 
            )            
    );

    // Don't show Welcome panel
    update_user_meta( $user_id, 'show_welcome_panel', 0 );

    // Activate our theme
    update_option( 'template', 'f8-lite' );
    update_option( 'stylesheet', 'f8-lite' );
    update_option( 'current_theme', 'F8 Lite' );

    // Update theme options
    $theme_options = array(
            "phone"       => "0800INSTALLWP",
            "email"       => "email@example.com",
            "selectinput" => "1",
            "cats"        => "1,2,3"
    );
    update_option( 'f8_theme_options', $theme_options );
    
    // Activate our plugins
    wpse_4041_run_activate_plugin( 'akismet/akismet.php' );
    wpse_4041_run_activate_plugin( 'advanced-custom-fields/acf.php' );

    // Inserting Akismet API Key
    update_option( 'wordpress_api_key', 'YOUR-AKISMET-KEY' );
    
    // Enable the Blogroll (disabled by default in WP 3.5)
    update_option( 'link_manager_enabled', true );
}


/**
 * Blocking WordPress from sending installation email notice
 *
 * Empty function
 */
function wp_new_blog_notification( $blog_title, $blog_url, $user_id, $password ) { /* empty function */ }