你不必考虑，WordPress会处理好的。

让我们看看wp_insert_post source code...

在线3203 您将发现：

if ( empty($post_name) ) {
    if ( !in_array( $post_status, array( \'draft\', \'pending\', \'auto-draft\' ) ) ) {
        $post_name = sanitize_title($post_title);
    } else {
        $post_name = \'\';
    }
} else {
    // On updates, we need to check to see if it\'s using the old, fixed sanitization context.
    $check_name = sanitize_title( $post_name, \'\', \'old-save\' );
    if ( $update && strtolower( urlencode( $post_name ) ) == $check_name && get_post_field( \'post_name\', $post_ID ) == $check_name ) {
        $post_name = $check_name;
    } else { // new post, or slug has changed.
        $post_name = sanitize_title($post_name);
    }
}

然后在线3325:

   $post_name = wp_unique_post_slug( $post_name, $post_ID, $post_status, $post_type, $post_parent );

WordPress将关注unique slug。如果要在创建后重定向到帖子，可以使用返回的帖子ID获取永久链接wp_insert_poost() 如果成功：

$my_post = array(
  \'post_title\'    => \'My post\',
  \'post_content\'  => \'This is my post.\',
  \'post_status\'   => \'publish\',
  \'post_author\'   => 1,
  \'post_category\' => array(8,39)
);

// Insert the post into the database
$post_id = wp_insert_post( $my_post );

// Check there was no errors
if( $post_id && ! is_wp_error( $post_id ) ) {

    wp_redirect( get_the_permalink( $post_id ) );
    exit;

}