php mysql fetch two table -

i have 2 table mysql.

1, photo (url_link)

2, video(url_link)

i wanna fetch 1 table (video url) if both table aren't empty.. there anyways? using code below:

<--photo -->     <?php        $query_img = mysql_query("select `url` `photos_news` title='{$thumn_content['titles']}' limit 0,1"); while($img = mysql_fetch_array($query_img)){ ?> <img src="<?php echo $img['url'];?>" class="img-responsive img-rounded"/> <?php }?>   <!-- vdo --> <?php $query_vdo = mysql_query("select `url` `video_news` title='{$thumn_content['titles']}' limit 0,1"); while($vdo = mysql_fetch_array($query_vdo)){ ?> <div class="embed-responsive embed-responsive-16by9">   <iframe class="embed-responsive-item" src="<?php echo $vdo['url']?>?modestbranding=1&showinfo=0&fs=0"></iframe> </div>  <?php }?> 

thank sir,

well can first fetch photos , videos did, before writting html. example can put results $photos , $videos arrays.

then can check if both variables has results, , if case write html videos.

<?php // part 1: collect data  $resource = mysql_query("select `url` `photos_news` title='{$thumn_content['titles']}' limit 0,1"); $photos = array();  while($row = mysql_fetch_array($resource)) {     $photos[] = $row;  }  $resource  = mysql_query("select `url` `video_news` title='{$thumn_content['titles']}' limit 0,1"); $videos = array();  while($row = mysql_fetch_array($resource)) {     $videos[] = $row;  }  // medias contains $videos if both tables has entries. $medias = $photos & $videos ? $videos : array_merge($photos, $videos);  ?> <?php // part 2: display data ?> <?php foreach($medias $media) : ?>    <img src="<?php echo $media['url'] ?>" class="img-responsive img-rounded"/> <?php endforeach ?>