How to get all post list in wordpress admin?

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i am creating a plugin.
i want to get all post like title and url. Not on frontpage just admin panel.
when i try to use this but not working 

<?php
$args = array( 'numberposts' => -1); 
$posts= get_posts( $args );
if ($posts) {
    foreach ( $posts as $post ) {
        setup_postdata($post);
        the_title();
    }
}
?>
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2 comments

  1. Please try this

    <?php
global $post;
$args = array( 'posts_per_page' => -1 );
$myposts = get_posts( $args );
foreach ( $myposts as $post ) : 
  setup_postdata( $post ); ?>
    <li><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></li>
<?php endforeach;
wp_reset_postdata(); ?>

  2. You must pass a reference to the global $post variable, otherwise functions like the_title() don’t work properly. So above $args:

    global $post;
$args = array( 'numberposts' => -1); 
$posts= get_posts( $args );
if ($posts) {
    foreach ( $posts as $post ) {
        setup_postdata($post);
        the_title();
    }
}
wp_reset_postdata()

    Also, use wp_reset_postdata() to restore globals to the original state when complete.

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