Question

i have got the folowing code.

$coauthors = get_post_meta( $post_id, "coAuthors" );

print_r($coauthors);

ok result from print_r is

Array ( [0] => 78 ) Array ( [0] => 78 )

now my user id is 78 so it should return true with the follow code but it doesnt.

$key = array_search( 78, $coauthors );

     if($key) { 

     return true;

     }else{

     echo "no"; 

     }

Why do i always get no where am i going wrong what the best way to do this???

Thanks

Im still getting issues here is my function.

   add_action('is_true','isdAuthorTrue');

    function isdAuthorTrue( $post_id ) { 

        $current_user = wp_get_current_user();
    if ( !($current_user instanceof WP_User) )
    return;

        $current_user = wp_get_current_user();

         $coauthors = get_post_meta( $post_id, "coAuthors" );

         $key = array_search( $current_user->ID, $coauthors );
         $key = 0;
         if($key !== false) {

           return true;

         } else {

             return false;
         }


        }  

and then i am trying to run this in the loop.

if(do_action( 'is_true', $post->ID )){

    echo "yes";

}else{

    echo "no";
}

help???

Answer 1

$key = 0;

That results in false.

You should check for key like this:

if($key !== false) {
    // do sth with it
} else {
    // does not exist
}