Description:
------------
It seem that the 5th parameter $escape in fgetcsv() function is completly ignored when executing the function. I tested the script on 3 different minor php version (5.3.5, 5.4.11 ans 5.5.7)  all with the same result.

If you try to set the escape character to any other character than " (double-quote) php totally ignores the parameter and still uses the double-quote.

Also this behavior show that the default escape character, which should be the backslash as outlined in the documentation, is the double-quote.

Test script:
---------------
<?php 

$fileContents = <<<EOD
"quote \"testing\"",""
"quote ""testing""",""
"quote \,testing\,",""
EOD;

$handle = fopen('php://memory', 'w');
fwrite($handle, $fileContents);
fseek($handle, 0);

while(!feof($handle))
{
    $test = fgetcsv($handle, 0, ',', '"', '\\');
    print_r($test);
}
?>

Expected result:
----------------
Array
(
    [0] => quote "testing"
    [1] => 
)
Array
(
    [0] => quote ""testing""
    [1] => 
)
Array
(
    [0] => quote \,testing\,
    [1] => 
)

Actual result:
--------------
Array
(
    [0] => quote \"testing\"
    [1] => 
)
Array
(
    [0] => quote "testing"
    [1] => 
)
Array
(
    [0] => quote \,testing\,
    [1] => 
)