Harden up is_user_logged_in() against empty $current_user instances to prevent PHP Notices on XML-RPC requests. Fixes #18458
git-svn-id: https://develop.svn.wordpress.org/trunk@18558 602fd350-edb4-49c9-b593-d223f7449a82
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@ -755,7 +755,7 @@ if ( !function_exists('is_user_logged_in') ) :
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function is_user_logged_in() {
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$user = wp_get_current_user();
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if ( $user->ID == 0 )
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if ( empty( $user->ID ) )
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return false;
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return true;
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