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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
1461 |
|
1462 | /** |
1463 | * Filter the comments count for a given post. |
1464 | * |
1465 | * @since 2.7.0 |
1466 | * |
1467 | * @param array $count An empty array. |
1468 | * @param int $post_id The post ID. |
1469 | */ |
1470 | $stats = apply_filters( 'wp_count_comments', array(), $post_id ); |
1471 | if ( !empty($stats) ) |
1472 | return $stats; |
1473 |
|
1474 | $count = wp_cache_get("comments-{$post_id}", 'counts'); |
1475 |
|
1476 | if ( false !== $count ) |
1477 | return $count; |
1478 |
|
1479 | $where = ''; |