Quotes in query

[eluser]ZioN[/eluser]
I'm running version 2.1.3.

I'm creating a string from an array like this:

Code:

$var = implode("', '", $Zipcodes);

This results in this query:

Code:

SELECT * FROM (`TABLE`) WHERE `Zipcode` IN ('0001\', \'0002\', \'0003')

Why does codeigniter escape it?