i have been trying to display the post that contain specific tag.

my query is:

 <form method="post" action="" multiple="multiple">
     <select name="options[]" multiple="multiple">
  <option value="15">mama</option>
  <option value="16">chacha</option>
   <option value="17">Bhatija</option>
  <option value="18">Don</option>
 
   </select>
  <input type="submit" value="submit" name="submit"/> 
  </form>
      <?php 

            if(isset($_POST['submit'])):
      $options = $_POST['options'];
   $query = new WP_Query( array( 'tag__in' => array( $options ) ) ); 
  //print_r($query);
   while ($query->have_posts()) : $query->the_post(); 
      echo get_the_tile($post->ID);

   endwhile;

unfortunately not working.

need help to get the list of post by selected tag.

i have been trying to display the post that contain specific tag.

what i am trying is: if user search for post related to tagss for example: if user selects the tag Don after submition the query will fetch post that contains don tag.

for that i have created one multiselect form. user will select multiple tags. for exapmle mama and don.

after form submit getting array of multiple selected values like:

     array([0]=>11,[1]=>18)
      $options = $_post['options'];
 i am passing this values to new WP_Query( array( 'tag__in' => array( $options ) ) );  


  <form method="post" action="" multiple="multiple">
 
   <select name="options[]" multiple="multiple">
       <option value="15">mama</option>
       <option value="16">chacha</option>
       <option value="17">Bhatija</option>
       <option value="18">Don</option>
   </select> 

  <input type="submit" value="submit" name="submit"/> 
  </form> 

      <?php 

            if(isset($_POST['submit'])):
      
   $options = $_POST['options'];
   
   $query = new WP_Query( array( 'tag__in' => array( $options ) ) ); 
  //print_r($query);
  
  while ($query->have_posts()) : $query->the_post(); 
  
    echo get_the_tile($post->ID);

   endwhile;

unfortunately it is not working.

need help to get the list of post by selected tag.