php - Get Posts Based on Category Wordpress -

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i have 2 categories in wordpress. 1 events , 1 news. have fetch posts in 2 categories in same page. there 4 posts in news category. , events can add user. have display first 8 events based on date of post. writing both categories using 2 queries , moving array.

i've coded given below:

$event_title       = array(); $event_author      = array(); $event_content     = array(); $event_thumbnail   = array(); $event_counter     = 0 ;  $arg = array(     'numberposts' => 8,     'offset' => 0,     'category' => 17,     'orderby' => 'post_date',     'order' => 'asc',     'post_type' => 'post',     'post_status' => 'draft, publish, future, pending, private',     'suppress_filters' => true );  $events = new wp_query( $arg );  if ($events->have_posts()) : while ($events->have_posts()) : $events->the_post();   $event_title[$event_counter]        = get_the_title(); $event_author[$event_counter]       = get_the_author(); $event_content[$event_counter]      = get_the_content(); $event_thumbnail[$event_counter]    = get_the_post_thumbnail();  $event_counter++;  endwhile; endif;

the category id events 17, i've find id using method echo get_cat_id( "events" );

the problem here posts not fetched on basis of category. takes first 8 posts withou considering category. how can solve issue.

in code use $arg, 'category' => 17, in codex written:

cat (int) - use category id. category_name (string) - use category slug (not name). category__and (array) - use category id. category__in (array) - use category id. category__not_in (array) - use category id.

so need use cat number of category or use array category__in


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