rows & !rows
#1

hello guys, I don't understand rows and !rows, I try to use In login/register but I have just "register" but I have my account in database

Can you help me please ?

code: https://pastebin.com/KXdH0CPk
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#2

!rows means row is zero.
and rows means it is more than zero.
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#3

Ok man thanks !
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