Get posts in wordpress

Use following code  for get the posts:

$args = array(
'posts_per_page'   => 5,
'offset'           => 0,
'category'         => '',
'orderby'          => 'post_date',
'order'            => 'DESC',
'include'          => '',
'exclude'          => '',
'meta_key'         => '',
'meta_value'       => '',
'post_type'        => 'post',
'post_mime_type'   => '',
'post_parent'      => '',
'post_status'      => 'publish',
'suppress_filters' => true );

$posts_array = get_posts( $args );