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Hi,

 

Yesterday I was writing a script for MS SQL and when it came to testing, I noticed backslash wasn't escaping single quotes.

 

Done my research on google and found the reason why. I then added a simple function to my validation class which i'm hoping somebody can review?

 

// A function to parse a mssql string
// $params: data - any data
// @returns validated mssql data
function mssql($data) {
$data = str_replace("[", "[[", $data);
$data = str_replace("]", "]]", $data);
$data = str_replace("'", "''", $data);
$data = str_replace('"', '""', $data);
$data = str_replace("%", "[%]", $data);
$data = str_replace("_", "[_]", $data);
return $data;
}

 

How secure is the above function?

 

Is there a way to improve it?

 

Thanks for reading and any feedback is appreciated.

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