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<?php

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/**

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* Jetpack Compatibility File

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* See: https://jetpack.com/

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* @package automattic/jetpack

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if ( ! defined( 'ABSPATH' ) ) {

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exit( 0 );

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}

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/**

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* Add Jetpack extra functionality to Twenty Twenty.

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* See: https://jetpack.com/support/infinite-scroll/

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* See: https://jetpack.com/support/responsive-videos/

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* See: https://jetpack.com/support/content-options/

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function twentytwenty_jetpack_setup() {

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/**

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* Add theme support for Infinite Scroll.

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add_theme_support(

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'infinite-scroll',

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array(

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'type' => 'click',

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'container' => 'site-content',

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'render' => 'twentytwenty_infinite_scroll_render',

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'footer' => 'site-content',

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'footer_widgets' => array(

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'sidebar-1',

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'sidebar-2',

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)

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);

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}

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add_action( 'after_setup_theme', 'twentytwenty_jetpack_setup' );

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/**

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* Custom render function for Infinite Scroll.

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function twentytwenty_infinite_scroll_render() {

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while ( have_posts() ) {

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echo '<hr class="post-separator styled-separator is-style-wide section-inner" aria-hidden="true" />';

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the_post();

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get_template_part( 'template-parts/content', get_post_type() );

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}

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}

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/**

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* Remove Sharing buttons and Likes from excerpts that are used as intro on single post views.

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function twentytwenty_no_sharing_on_excerpts() {

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if ( is_single() ) {

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// Remove sharing buttons.

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remove_filter( 'the_excerpt', 'sharing_display', 19 );

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// Remove Likes.

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if ( class_exists( 'Jetpack_Likes' ) ) {

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remove_filter( 'the_excerpt', array( Jetpack_Likes::init(), 'post_likes' ), 30 );

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}

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}

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}

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add_action( 'loop_start', 'twentytwenty_no_sharing_on_excerpts' );

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/**

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* We do not need to display the Likes Heading here.

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* @param string $heading Headline structure.

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* @param string $title Title.

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* @param string $module Module name.

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function twentytwenty_no_likes_heading( $heading, $title, $module ) {

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if ( 'likes' === $module ) {

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return '';

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}

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return $heading;

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}

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add_filter( 'jetpack_sharing_headline_html', 'twentytwenty_no_likes_heading', 10, 3 );

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/**

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* Disable Ads in post excerpts, that are used as intro on single post views.

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add_filter( 'wordads_excerpt_disable', '__return_true' );

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/**

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* Add our compat CSS file for Infinite Scroll and custom widget stylings and such.

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* Set the version equal to filemtime for development builds, and the JETPACK__VERSION for production

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* or skip it entirely for wpcom.

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function twentytwenty_enqueue_jetpack_style() {

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$version = Jetpack::is_development_version()

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? filemtime( JETPACK__PLUGIN_DIR . 'modules/theme-tools/compat/twentytwenty.css' )

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: JETPACK__VERSION;

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wp_enqueue_style( 'twentytwenty-jetpack', plugins_url( 'twentytwenty.css', __FILE__ ), array(), $version );

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wp_style_add_data( 'twentytwenty-jetpack', 'rtl', 'replace' );

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}

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add_action( 'wp_enqueue_scripts', 'twentytwenty_enqueue_jetpack_style' );

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/**

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* Add inline custom CSS with custom accent color if there is any set.

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function twentytwenty_infinity_accent_color_css() {

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$color_info = get_theme_mod( 'accent_accessible_colors' );

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// Bail early if no custom color was set.

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if (

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'custom' !== get_theme_mod( 'accent_hue_active' )

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|| empty( $color_info )

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) {

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return;

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}

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$custom_css = sprintf(

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.infinite-scroll #site-content #infinite-handle span button,

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.infinite-scroll #site-content #infinite-handle span button:hover,

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.infinite-scroll #site-content #infinite-handle span button:focus {

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background: %1$s;

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color: %2$s;

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}

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#site-content .entry-content div.sharedaddy h3.sd-title,

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#site-content .entry-content h3.sd-title,

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#site-content .entry-content #jp-relatedposts h3.jp-relatedposts-headline {

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color: %3$s;

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}

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$color_info['content']['accent'],

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$color_info['content']['background'] ?? '#fff',

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$color_info['content']['secondary']

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);

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// Add our custom style to the existing Twenty Twenty CSS compat file.

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wp_add_inline_style( 'twentytwenty-jetpack', $custom_css );

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}

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add_action( 'wp_enqueue_scripts', 'twentytwenty_infinity_accent_color_css' );

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/**

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* Load AMP theme specific hooks for infinite scroll.

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* @return void

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function amp_twentytwenty_infinite_scroll_render_hooks() {

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add_filter( 'jetpack_amp_infinite_footers', 'twentytwenty_amp_infinite_footers', 10, 2 );

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add_filter( 'jetpack_amp_infinite_output', 'twentytwenty_amp_infinite_output' );

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add_filter( 'jetpack_amp_infinite_separator', 'twentytwenty_amp_infinite_separator' );

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add_filter( 'jetpack_amp_infinite_older_posts', 'twentytwenty_amp_infinite_older_posts' );

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}

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/**

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* Get the theme specific footers.

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* @param array $footers The footers of the themes.

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* @param string $buffer Contents of the output buffer.

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* @return mixed

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function twentytwenty_amp_infinite_footers( $footers, $buffer ) {

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// Collect the footer wrapper.

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preg_match(

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'/<div class="footer-nav-widgets-wrapper.*/s',

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$buffer,

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$footer

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);

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$footers[] = reset( $footer );

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// Collect the footer wrapper.

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preg_match(

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'/<footer id="site-footer".*/s',

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$buffer,

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$footer

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);

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$footers[] = reset( $footer );

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return $footers;

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}

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/**

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* Hide and remove various elements from next page load.

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* @param string $buffer Contents of the output buffer.

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* @return string

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function twentytwenty_amp_infinite_output( $buffer ) {

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// Hide site header on next page load.

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$buffer = preg_replace(

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'/id="site-header"/',

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'$0 next-page-hide',

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$buffer

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);

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// Hide pagination on next page load.

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$buffer = preg_replace(

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'/class=".*pagination-wrapper.*"/',

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'$0 next-page-hide hidden',

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$buffer

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);

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// Remove the footer as it will be added back to amp next page footer.

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$buffer = preg_replace(

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'/<div class="footer-nav-widgets-wrapper.*/s',

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'',

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$buffer

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);

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// Remove the footer as it will be added back to amp next page footer.

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$buffer = preg_replace(

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'/<footer id="site-footer".*/s',

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'',

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$buffer

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);

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return $buffer;

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}

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/**

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* Filter the AMP infinite scroll separator

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* @return string

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function twentytwenty_amp_infinite_separator() {

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ob_start();

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<?php

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return ob_get_clean();

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}

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/**

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* Filter the AMP infinite scroll older posts button

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* @return string

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function twentytwenty_amp_infinite_older_posts() {

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ob_start();

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<span>

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<?php esc_html_e( 'Older posts', 'jetpack' ); ?>

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</span>

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</a>

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</span>

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</div>

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<?php

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return ob_get_clean();

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}

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