/* * Patch for filter_var() */ if(!function_exists('filter_var')){ define('FILTER_VALIDATE_IP', 'ip'); define('FILTER_FLAG_IPV4', 'ipv4'); define('FILTER_FLAG_IPV6', 'ipv6'); define('FILTER_VALIDATE_EMAIL', 'email'); define('FILTER_FLAG_EMAIL_UNICODE', 'unicode'); function filter_var($variable, $filter, $option = false){ if($filter == 'ip'){ if($option == 'ipv4'){ if(preg_match("/(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})/", $variable, $matches)){ $variable = $matches[1]; return $variable; } } if($option == 'ipv6'){ if(preg_match("/\s*(([:.]{0,7}[0-9a-fA-F]{0,4}){1,8})\s*/", $variable, $matches)){ $variable = $matches[1]; return $variable; } } } if($filter == 'email'){ if($option == 'unicode' || $option == false){ if(preg_match("/\s*(\S*@\S*\.\S*)\s*/", $variable, $matches)){ $variable = $matches[1]; return $variable; } } } } }
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Since fluorine or You calcium fluoride is the thirteenth abundant mineral on earth it is pretty much unavoidable in small amounts!This is alarming! I just tried to find some kind of a food chart showing fluoride and it's very confusing though I am surprised at how much there actually is in our food! One article linked to below even said that iceberg lettuce can contain as much as 180 times more than in tap water. If that's true then what validates adding it to tap water in the first place? Also there is no distinction between naturally occurring calcium fluoride and man made forms like the kind used in pesticides and/or sodium fluoride which is a hundred times more toxic. I wonder how much of the fluoride used in iceberg lettuce is natural and how much is from pesticides.