Note that this function can also be used to parse other types of constructions. For example, I have used to parse .htaccess AddDescription lines:

    AddDescription "My description to the file." filename.jpg

Those lines can be parsed like this:

<?php

$line = 'AddDescription "My description to the file." filename.jpg';

$parsed = str_getcsv(
    $line, # Input line
    ' ',   # Delimiter
    '"',   # Enclosure
    '\\'   # Escape char
);

var_dump( $parsed );

?>

The output:

array(3) {
  [0]=>
  string(14) "AddDescription"
  [1]=>
  string(27) "My description to the file."
  [2]=>
  string(12) "filename.jpg"
}