Warning:pregmatch()expectsatleast2parameters,1givenin/returnpregmatch('(alter|rename|iframe|script|select|insert|update|delete|deletefrom|count\\(|droptable|truncate|asc\\(|mid\\(|char\\(|xpcmdshell|execmaster|netlocalgroup

Question

Warning: preg_match() expects at least 2 parameters, 1 given in /return preg_match('( alter |rename |iframe|script|select |insert |update |delete |delete from|count\\(|drop table|truncate |asc\\(|mid\\(|char\\(|xp_cmdshell|exec master|net localgroup administrators|net user| or |\'|"|\\/\\*|\\*|\\.\\.\\/|\\.\\/|union|into|load_file|outfile", $Ref636262e6 /'); } 请问下哪里错了？

Answer 1

return preg_match('( alter |rename |iframe|script|select |insert |update |delete |delete from|count\\(|drop table|truncate |asc\\(|mid\\(|char\\(|xp_cmdshell|exec master|net localgroup administrators|net user| or |\'|"|\\/\\*|\\*|\\.\\.\\/|\\.\\/|union|into|load_file|outfile', $Ref636262e6);