PHP reading a csv file effectively

Question

There are a few ways to read CSV files with PHP. I used to use the explode function to put each line into an array and then explode commas and use trim

Answer 1

There is a function for reading files in line-wise: file(), which also works on both linebreak types.

And the shortest method to read in the whole CSV file is:

$data = array_map("str_getcsv", file($filename));

Not sure what your $num = count() was about.