Read a .csv file into an array in Laravel
Stefan Izdrail
Founder & Senior Architect · 2026-06-29
Title: Efficiently Read CSV Files into Arrays in Laravel Applications
Introduction
In many modern web applications, it is common to interface with external data sources like CSV files. In Laravel, these files are often stored within the `/storage` directory. Handling and processing such data efficiently can significantly enhance your application's performance. This blog post aims to provide a comprehensive solution for reading CSV files into arrays in Laravel while avoiding potential pitfalls experienced by other developers.
The Problem with Your Current Code
Your code seems to be encountering an issue when attempting to open the file using `fopen` and subsequently getting the ErrorException. The reason behind this is that you were specifying the relative path `/storage/data.csv`, which may be different depending on your application's configuration and the specific directory structure. You need a more reliable way to obtain the correct URL for accessing the file.
A Better Approach
There are several ways to improve your code, but one effective method is to utilize Laravel's built-in helper functions for file management. Instead of directly using `fopen`, you can leverage the `Storage::url()` function, which provides a URL pointing to the specified file within the storage directory. This approach ensures that the file path remains consistent across environments and configurations.
Implementing the Better Solution
To implement this solution in your code, follow these steps:
1. Adjust your code to use `Storage::url()` instead of a relative path.
2. Make sure to include the appropriate use statement at the top of your file: `use Illuminate\Support\Facades\Storage;`
3. Modify your controller's function to look like this:
public function get_data() {
$file_n = Storage::url('data.csv');
$file = fopen($file_n, "r");
$all_data = array();
while ( ($data = fgetcsv($file, 200, ",")) !==FALSE ) {
$name = $data[0];
$city = $data[1];
$all_data[] = array("Name" => $name, "City" => $city);
}
fclose($file);
}