使用str_getcsv进行CSV解析在新行上失败

Question

While reading a csv file with PHP a problem occured with a line break within the CSV file. The contents of one cell will be split once a comma is followed by a line break:

$csv = array_map('str_getcsv', file($file));

first,second,"third,
    more,text","forth"
next,dataset

This will result in:

1) first | second | third
2) more text | forth
3) next | dataset

While it should result in:

1) first | second | third more text | forth
2) next | dataset

Is this a bug within str_getcsv?

Answer 1

Don't do that, use fgetcsv(). You're having problems because file() doesn't care about the string encapsulation in your file.

$fh = fopen('file.csv', 'r');

while( $line = fgetcsv($fh) ) {
    // do a thing
}

fclose($fh);

https://secure.php.net/manual/en/function.fgetcsv.php

And try not to store all the lines into an array before performing your operations if you can help it. Your system's memory usage will thank you.