from csv to array with end of line chars - php

Question

To parse CSV files in php im using this function:
private function _csvToArray($url, $delimiter=',')
{
$csvData = file_get_contents($url);
$lines = explode(PHP_EOL, $csvData);
$array = array();
foreach ($lines as $line) {
$array[] = str_getcsv($line, $delimiter);
}
return $array;
}
The problem here is Im using EOL to determine where a line ends, if the CSV file have any field with any end of line chars im getting errors.
Example:
Product_Name, "Description"
Product_Name, "Description"
Product_Name, "Description"
Product_Name, "Description"
This works ok, but if I have something like this:
Product_Name, "Description_line_1
Description_line_2"
Product_Name, "Description_line_1
Description_line_2"
Product_Name, "Description_line_1
Description_line_2"
The script will fail, is there any way I can improve the script in order to consider this or is better to use a regular expression to fix first the CSV before calling the sript?

Answer 1

If you want to save writing to a temporary file yourself you can use the memory stream.
private function _csvToArray($url, $delimiter=',')
{
$fp = fopen('php://memory', 'r+');
fwrite($fp, file_get_contents($url));
fseek($fp, 0);
$array = array();
while ($row = fgetcsv($fp, 0, $delimiter)) {
$array[] = $row;
}
fclose($fp);
return $array;
}

Answer 2

fgetcsv can handle EOL in fields if the field data is between enclosure characters.
private function _csvToArray($url, $delimiter=',', $enclosure='"')
{
$handle = fopen($url, 'r');
$array = array();
while($row = fgetcsv($handle, 0, $delimiter, $enclosure))
{
$array[] = $row;
}
fclose($handle);
return $array;
}

Answer 3

Something like this should work (havent properly tested the code):
$csv = array_map('str_getcsv', file($url), ',', '"');
I had an old code lying around which fixed this once for me... But remember... it's from way way back;
$url = 'file.csv';
$csv = array();
$csvContents = file_get_contents($url);
$lines = explode('"'."\n", trim($csvContents));
foreach($lines as $lineNumber => $line) {
$csv[$lineNumber] = array();
$fields = explode(',', $line);
foreach($fields as $field) {
$csv[$lineNumber][] = ltrim(rtrim($field, '"'), '"');
}
}