is_author( int|string|int[]|string[] $author =  ): bool

Determines whether the query is for an existing author archive page.

Description

If the $author parameter is specified, this function will additionally check if the query is for one of the authors specified.

For more information on this and similar theme functions, check out the Conditional Tags article in the Theme Developer Handbook.

Parameters

$authorint|string|int[]|string[]optional
User ID, nickname, nicename, or array of such to check against.

Default:''

Return

bool Whether the query is for an existing author archive page.

Source

function is_author( $author = '' ) {
	global $wp_query;

	if ( ! isset( $wp_query ) ) {
		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
		return false;
	}

	return $wp_query->is_author( $author );
}

Changelog

VersionDescription
1.5.0Introduced.

User Contributed Notes

  1. Skip to note 2 content

    Examples

    is_author();
    // When any Author page is being displayed.
    
    is_author('4');
    // When the archive page for Author number (ID) 4 is being displayed.
    
    is_author('Vivian');
    // When the archive page for the Author with Nickname "Vivian" is being displayed.
    
    is_author('john-jones');
    // When the archive page for the Author with Nicename "john-jones" is being displayed.
    
    is_author(array(4,'john-jones','Vivian'));
    // When the archive page for the author is either user ID 4, or user_nicename "john-jones",
    // or nickname "Vivian".  Note: the array ability was added at Version 2.5.

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