<?php
$post = array(
	  'comment_status' => 'closed',
	  'ping_status' =>  'closed' ,
	  'post_author' => 1,
	  'post_date' => gmdate('Y-m-d H:i:s'),
	  'post_name' => 'Blog',
	  'post_status' => 'publish' ,
	  'post_title' => 'Blog',
	  'post_type' => 'page',
);  

// Insert page and save the ID
$newvalue = wp_insert_post($post, false);
if ($newvalue && !is_wp_error($newvalue)) {
	update_post_meta($newvalue, '_wp_page_template', 'page.php');

	// Use WP_Query to get the page by title instead of get_page_by_title()
	$args = array(
		'post_type' => 'page',
		'title' => 'Blog',
		'posts_per_page' => 1,
	);
	$query = new WP_Query($args);

	if ($query->have_posts()) {
		$query->the_post();
		$page_id = get_the_ID();

		// Set the page as the static front page
		update_option('show_on_front', 'page');
		update_option('page_for_posts', $page_id);

		// Reset post data
		wp_reset_postdata();
	}
}
?>