Optimize get_user_by( 'id', $id ) to return wp_get_current_user() when the current user ID is requested.
Provides for a major performance improvement by preventing repeated instantiations of WP_User in the capabilities API. see #21120. git-svn-id: http://core.svn.wordpress.org/trunk@21376 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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@ -133,6 +133,9 @@ if ( !function_exists('get_user_by') ) :
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* @return bool|object False on failure, WP_User object on success
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*/
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function get_user_by( $field, $value ) {
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if ( 'id' === $field && (int) $value && get_current_user_id() === (int) $value )
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return wp_get_current_user();
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$userdata = WP_User::get_data_by( $field, $value );
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if ( !$userdata )
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