Description:
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When reading a comma separated file with fgetcsv, the function does not split the fields correctly in following conditions:

-backslash \ at the end of a field
and
-fields are enclosed by ""

the following line from the csv-file is read with a wrong result:

"test1\","test2","test3"

There are only 2 fields in the array returned by fgetcsv:

[0] => test1\",test2
[1] => test3

Expected is:

[0] => test1\
[1] => test2
[2] => test3