function replace_meta_chars($string){ 
return @eregi_replace("([*])|([|])|([;]|([`])","",$string); 
} 

while(list($keyx,$valuex) = each($_REQUEST)){ 
if(eregi("([*])|([|])|([;])",$valuex)){ 
mail("notification@realcds.com","Hack Alert","There's been a SQL Injection hacking attempt. $HTTP_REFERRER $REMOTE_ADDR","FROM:notifications@realcds.com,BCC:krishnaveni_cd@yahoo.com"); 
} 
} 

reset ($_REQUEST); 
while(list($keyx,$valuex) = each($_REQUEST)){ 
${$keyx} = replace_meta_chars($valuex); 
echo "$keyx $valuex
"; 
}