php - How do I link to external images in my WP posts -

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i scraping site , putting data in wp site.

there lots of images in posts.

i want when importing scraped data wp site, want link images site directly external url instead of downloading image server.

i grammatically importing scraped data site.

here part of adding image 

    // image     $ins_q = "insert wpxw_posts (post_author, post_date, post_date_gmt, post_content, post_title, post_excerpt, post_status, "             . "comment_status, ping_status,"             . "post_password, post_name, to_ping, pinged, post_modified,post_modified_gmt, post_content_filtered,post_parent,"             . "guid,menu_order,post_type,"             . "post_mime_type,comment_count) values(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)";      $sth = $conn->prepare($ins_q);     if (!$sth->execute(array(                $post_author, $date, $date, "", sanitize_title_with_dashes($image_name), "", "inherit", "open", "closed", '',                 str_replace(".", "-", $image_name), '', '', $date, $date, '', $post_id,                 "http://photos2.zillowstatic.com/p_f/isdc6hruhctopo0000000000.jpg"                   , 0, "attachment", "image/jpeg", 0             ))) {         echo "<h1>error</h1>";         print_r($sth->errorinfo());         exit();     }

}

my problem when adding external link image, images not show on post. how can show images external resources?

// add featured image post $image_url  = 'http://s.wordpress.org/style/images/wp-header-logo.png'; // define image url here $upload_dir = wp_upload_dir(); // set upload folder $image_data = file_get_contents($image_url); // image data $filename   = basename($image_url); // create image file name  // check folder permission , define file location if( wp_mkdir_p( $upload_dir['path'] ) ) {     $file = $upload_dir['path'] . '/' . $filename; } else {     $file = $upload_dir['basedir'] . '/' . $filename; }  // create image  file on server file_put_contents( $file, $image_data );  // check image file type $wp_filetype = wp_check_filetype( $filename, null );  // set attachment data $attachment = array(     'post_mime_type' => $wp_filetype['type'],     'post_title'     => sanitize_file_name( $filename ),     'post_content'   => '',     'post_status'    => 'inherit' );  // create attachment $attach_id = wp_insert_attachment( $attachment, $file, $post_id );  // include image.php require_once(abspath . 'wp-admin/includes/image.php');  // define attachment metadata $attach_data = wp_generate_attachment_metadata( $attach_id, $file );  // assign metadata attachment wp_update_attachment_metadata( $attach_id, $attach_data );  // , assign featured image post set_post_thumbnail( $post_id, $attach_id );

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