[HFCTF_2021_Final]hatenum
# [HFCTF_2021_Final]hatenum
function sql_waf($str){ if(preg_match('/union|select|or|and|\'|"|sleep|benchmark|regexp|repeat|get_lock|count|=|>|<| |\*|,|;|\r|\n|\t|substr|right|left|mid/i', $str)){ die('Hack detected'); }} function...
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