WP_Comment_Query::get_comments() – Get a list of comments matching the query vars.
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Description
Get a list of comments matching the query vars.
Usage
$int|int[]|WP_Comment[] = WP_Comment_Query::get_comments();
Parameters
Returns
int|int[]|WP_Comment[] List of comments or number of found comments if $count
argument is true.
Source
File name: wordpress/wp-includes/class-wp-comment-query.php
Lines:
1 to 100 of 157
public function get_comments() { global $wpdb; $this->WP_Comment_Query::parse_query(); // Parse meta query. $this->meta_query = new WP_Meta_Query(); $this->meta_query->parse_query_vars( $this->query_vars ); /** * Fires before comments are retrieved. * * @since 3.1.0 * * @param WP_Comment_Query $query Current instance of WP_Comment_Query (passed by reference). */ do_action_ref_array( 'pre_get_comments', array( &$this ) ); // Reparse query vars, in case they were modified in a 'pre_get_comments' callback. $this->meta_query->parse_query_vars( $this->query_vars ); if ( ! empty( $this->meta_query->queries ) ) { $this->meta_query_clauses = $this->meta_query->get_sql( 'comment', $wpdb->comments, 'comment_ID', $this ); } $comment_data = null; /** * Filters the comments data before the query takes place. * * Return a non-null value to bypass WordPress' default comment queries. * * The expected return type from this filter depends on the value passed * in the request query vars: * - When `$this->query_vars['count']` is set, the filter should return * the comment count as an integer. * - When `'ids' === $this->query_vars['fields']`, the filter should return * an array of comment IDs. * - Otherwise the filter should return an array of WP_Comment objects. * * Note that if the filter returns an array of comment data, it will be assigned * to the `comments` property of the current WP_Comment_Query instance. * * Filtering functions that require pagination information are encouraged to set * the `found_comments` and `max_num_pages` properties of the WP_Comment_Query object, * passed to the filter by reference. If WP_Comment_Query does not perform a database * query, it will not have enough information to generate these values itself. * * @since 5.3.0 * @since 5.6.0 The returned array of comment data is assigned to the `comments` property * of the current WP_Comment_Query instance. * * @param array|int|null $comment_data Return an array of comment data to short-circuit WP's comment query, * the comment count as an integer if `$this->query_vars['count']` is set, * or null to allow WP to run its normal queries. * @param WP_Comment_Query $query The WP_Comment_Query instance, passed by reference. */ $comment_data = apply_filters_ref_array( 'comments_pre_query', array( $comment_data, &$this ) ); if ( null !== $comment_data ) { if ( is_array( $comment_data ) && ! $this->query_vars['count'] ) { $this->comments = $comment_data; } return $comment_data; } /* * Only use the args defined in the query_var_defaults to compute the key, * but ignore 'fields', 'update_comment_meta_cache', 'update_comment_post_cache' which does not affect query results. */ $_args = wp_array_slice_assoc( $this->query_vars, array_keys( $this->query_var_defaults ) ); unset( $_args['fields'], $_args['update_comment_meta_cache'], $_args['update_comment_post_cache'] ); $key = md5( serialize( $_args ) ); $last_changed = wp_cache_get_last_changed( 'comment' ); $cache_key = "get_comments:$key:$last_changed"; $cache_value = wp_cache_get( $cache_key, 'comment' ); if ( false === $cache_value ) { $comment_ids = $this->WP_Comment_Query::get_comment_ids(); if ( $comment_ids ) { $this->WP_Comment_Query::set_found_comments(); } $cache_value = array( 'comment_ids' => $comment_ids, 'found_comments' => $this->found_comments, ); wp_cache_add( $cache_key, $cache_value, 'comment' ); } else { $comment_ids = $cache_value['comment_ids']; $this->found_comments = $cache_value['found_comments']; } if ( $this->found_comments && $this->query_vars['number'] ) { $this->max_num_pages = ceil( $this->found_comments / $this->query_vars['number'] ); }