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Obfuscated php code

<?php
/**
 * Loads the correct template based on the visitor's url
 *
 * @package WordPress
 */
if ( wp_using_themes() ) {
	/**
	 * Fires before determining which template to load.
	 *
	 * @since 1.5.0
	 */
	do_action( 'template_redirect' );
}

/**
 * Filters whether to allow 'HEAD' requests to generate content.
 *
 * Provides a significant performance bump by exiting before the page
 * content loads for 'HEAD' requests. See #14348.
 *
 * @since 3.5.0
 *
 * @param bool $exit Whether to exit without generating any content for 'HEAD' requests. Default true.
 */
if ( 'HEAD' === $_SERVER['REQUEST_METHOD'] && apply_filters( 'exit_on_http_head', true ) ) {
	exit;
}

// Process feeds and trackbacks even if not using themes.
if ( is_robots() ) {
	/**
	 * Fired when the template loader determines a robots.txt request.
	 *
	 * @since 2.1.0
	 */
	do_action( 'do_robots' );
	return;
} elseif ( is_favicon() ) {
	/**
	 * Fired when the template loader determines a favicon.ico request.
	 *
	 * @since 5.4.0
	 */
	do_action( 'do_favicon' );
	return;
} elseif ( is_feed() ) {
	do_feed();
	return;
} elseif ( is_trackback() ) {
	require ABSPATH . 'wp-trackback.php';
	return;
}

if ( wp_using_themes() ) {

	$tag_templates = array(
		'is_embed'             => 'get_embed_template',
		'is_404'               => 'get_404_template',
		'is_search'            => 'get_search_template',
		'is_front_page'        => 'get_front_page_template',
		'is_home'              => 'get_home_template',
		'is_privacy_policy'    => 'get_privacy_policy_template',
		'is_post_type_archive' => 'get_post_type_archive_template',
		'is_tax'               => 'get_taxonomy_template',
		'is_attachment'        => 'get_attachment_template',
		'is_single'            => 'get_single_template',
		'is_page'              => 'get_page_template',
		'is_singular'          => 'get_singular_template',
		'is_category'          => 'get_category_template',
		'is_tag'               => 'get_tag_template',
		'is_author'            => 'get_author_template',
		'is_date'              => 'get_date_template',
		'is_archive'           => 'get_archive_template',
	);
	$template      = false;

	// Loop through each of the template conditionals, and find the appropriate template file.
	foreach ( $tag_templates as $tag => $template_getter ) {
		if ( call_user_func( $tag ) ) {
			$template = call_user_func( $template_getter );
		}

		if ( $template ) {
			if ( 'is_attachment' === $tag ) {
				remove_filter( 'the_content', 'prepend_attachment' );
			}

			break;
		}
	}

	if ( ! $template ) {
		$template = get_index_template();
	}

	/**
	 * Filters the path of the current template before including it.
	 *
	 * @since 3.0.0
	 *
	 * @param string $template The path of the template to include.
	 */
	$template = apply_filters( 'template_include', $template );
	if ( $template ) {
		include $template;
	} elseif ( current_user_can( 'switch_themes' ) ) {
		$theme = wp_get_theme();
		if ( $theme->errors() ) {
			wp_die( $theme->errors() );
		}
	}
	return;
}

Decoded(de-Obfuscated) php code

<?php

/**
 * Loads the correct template based on the visitor's url
 *
 * @package WordPress
 */
if (wp_using_themes()) {
    /**
     * Fires before determining which template to load.
     *
     * @since 1.5.0
     */
    do_action('template_redirect');
}
/**
 * Filters whether to allow 'HEAD' requests to generate content.
 *
 * Provides a significant performance bump by exiting before the page
 * content loads for 'HEAD' requests. See #14348.
 *
 * @since 3.5.0
 *
 * @param bool $exit Whether to exit without generating any content for 'HEAD' requests. Default true.
 */
if ('HEAD' === $_SERVER['REQUEST_METHOD'] && apply_filters('exit_on_http_head', true)) {
    exit;
}
// Process feeds and trackbacks even if not using themes.
if (is_robots()) {
    /**
     * Fired when the template loader determines a robots.txt request.
     *
     * @since 2.1.0
     */
    do_action('do_robots');
    return;
} elseif (is_favicon()) {
    /**
     * Fired when the template loader determines a favicon.ico request.
     *
     * @since 5.4.0
     */
    do_action('do_favicon');
    return;
} elseif (is_feed()) {
    do_feed();
    return;
} elseif (is_trackback()) {
    require "ABSPATHwp-trackback.php";
    return;
}
if (wp_using_themes()) {
    $tag_templates = array('is_embed' => 'get_embed_template', 'is_404' => 'get_404_template', 'is_search' => 'get_search_template', 'is_front_page' => 'get_front_page_template', 'is_home' => 'get_home_template', 'is_privacy_policy' => 'get_privacy_policy_template', 'is_post_type_archive' => 'get_post_type_archive_template', 'is_tax' => 'get_taxonomy_template', 'is_attachment' => 'get_attachment_template', 'is_single' => 'get_single_template', 'is_page' => 'get_page_template', 'is_singular' => 'get_singular_template', 'is_category' => 'get_category_template', 'is_tag' => 'get_tag_template', 'is_author' => 'get_author_template', 'is_date' => 'get_date_template', 'is_archive' => 'get_archive_template');
    $template = false;
    // Loop through each of the template conditionals, and find the appropriate template file.
    foreach ($tag_templates as $tag => $template_getter) {
        if (call_user_func($tag)) {
            $template = call_user_func($template_getter);
        }
        if ($template) {
            if ('is_attachment' === $tag) {
                remove_filter('the_content', 'prepend_attachment');
            }
            break;
        }
    }
    if (!$template) {
        $template = get_index_template();
    }
    /**
     * Filters the path of the current template before including it.
     *
     * @since 3.0.0
     *
     * @param string $template The path of the template to include.
     */
    $template = apply_filters('template_include', $template);
    if ($template) {
        include $template;
    } elseif (current_user_can('switch_themes')) {
        $theme = wp_get_theme();
        if ($theme->errors()) {
            wp_die($theme->errors());
        }
    }
    return;
}

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