This function has been deprecated. Use is_main_site() instead.

is_main_blog()

Deprecated functionality to determin if the current site is the main site.

Description

See also

Source

File: wp-includes/ms-deprecated.php 

function is_main_blog() {
	_deprecated_function( __FUNCTION__, 'WP-3.0.0', 'is_main_site()' );
	return is_main_site();
}

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Changelog

Changelog
Version Description
3.0.0 Use is_main_site()
MU (3.0.0) Introduced. MU (3.0.0)