Indicates whether the screen is in a particular admin.

Parameters

$adminstringoptional

The admin to check against (network | user | site).
If empty any of the three admins will result in true.

Default:null

Return

Source

public function in_admin( $admin = null ) {
	if ( empty( $admin ) ) {
		return (bool) $this->in_admin;
	}

	return ( $admin === $this->in_admin );
}

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