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wordpress函数is_main_query()用法示例

is_main_query()

Is the query the main query?


描述


返回值

(bool)

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源代码

File: wp-includes/query.php

function is_main_query() {
	if ( 'pre_get_posts' === current_filter() ) {
		$message = sprintf(
			/* translators: 1: pre_get_posts 2: WP_Query->is_main_query() 3: is_main_query() 4: link to codex is_main_query() page. */
			__( 'In %1$s, use the %2$s method, not the %3$s function. See %4$s.' ),
			'<code>pre_get_posts</code>',
			'<code>WP_Query->is_main_query()</code>',
			'<code>is_main_query()</code>',
			__( 'https://codex.wordpress.org/Function_Reference/is_main_query' )
		);
		_doing_it_wrong( __FUNCTION__, $message, '3.7.0' );
	}

	global $wp_query;
	return $wp_query->is_main_query();
}

更新日志

Version 描述
3.3.0 Introduced.

相关函数

Uses

  • wp-includes/l10n.php:
    __()
  • wp-includes/class-wp-query.php:
    WP_Query::is_main_query()
  • wp-includes/functions.php:
    _doing_it_wrong()
  • wp-includes/plugin.php:
    current_filter()

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    Contributed by Codex

    Example of using WP_Query->is_main_query() instead of is_main_query() (invalid)

    
    /**
     * If the global query is for a category, exclude category 5.
     *
     * @param WP_Query $query Global WP_Query instance.
     */
    function wpdocs_modify_query_exclude_category( $query ) {
        if ( ! is_admin() && $query->is_main_query() && ! $query->get( 'cat' ) )
            $query->set( 'cat', '-5' );
    }
    add_action( 'pre_get_posts', 'wpdocs_modify_query_exclude_category' );
    

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