Laravel 11 Import Large CSV File into Database Example

In this tutorial, I will share with you how to import large csv and Excel files into the database in the laravel 11 application.

Sometimes, we have large CSV files, such as 1GB, 2GB, 4GB, etc., that need to be imported into a database. Large files can cause timeouts or other issues in Laravel, but I have the perfect solution for importing large CSV files into your database. We will use Laravel's LazyCollection, DB, fopen() and fgetcsv() to read the CSV file and store the data into the database.

So, let's simply see the example code:

Step for Laravel 11 Import Large CSV File into Database Example

• Step 1: Install Laravel 11
• Step 2: Create Products Table
• Step 3: Create Seeder
• Run Laravel App

Step 1: Install Laravel 11

This step is not required; however, if you have not created the Laravel app, then you may go ahead and execute the below command:

composer create-project laravel/laravel example-app

Step 2: Create Products Table

Here, we need to create a database migration for the "products" table and also we will create a model for the "products" table.

php artisan make:migration create_products_table

Migration:

<?php
  
use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;
  
return new class extends Migration
{
    /**
     * Run the migrations.
     */
    public function up(): void
    {
        Schema::create('products', function (Blueprint $table) {
            $table->id();
            $table->string('name');
            $table->string('amount');
            $table->text('description');
            $table->timestamps();
        });
    }
  
    /**
     * Reverse the migrations.
     */
    public function down(): void
    {
        Schema::dropIfExists('products');
    }
};

you need to run the following command to migration.

php artisan migrate

Step 3: Create Seeder

Here, we will create ProductSeeder class and write code of import large csv file.

Make sure you created products.csv file with "name", "amount" and "description" columns. Put that file in public folder.

Now, let's create seeder class using following command:

php artisan make:seeder ProductSeeder

Let's update following seeder code:

database/seeders/ProductSeeder.php

<?php
  
namespace Database\Seeders;
  
use Illuminate\Database\Console\Seeds\WithoutModelEvents;
use Illuminate\Database\Seeder;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\LazyCollection;
  
class ProductSeeder extends Seeder
{
    /**
     * Run the database seeds.
     */
    public function run(): void
    {
        DB::disableQueryLog();
        DB::table('products')->truncate();
  
        LazyCollection::make(function () {
            $handle = fopen(public_path("products.csv"), 'r');
            
            while (($line = fgetcsv($handle, 4096)) !== false) {
                $dataString = implode(", ", $line);
                $row = explode(',', $dataString);
                yield $row;
            }
  
            fclose($handle);
  
        })
        ->skip(1)
        ->chunk(1000)
        ->each(function (LazyCollection $chunk) {
  
            $records = $chunk->map(function ($row) {
                          return [
                            "name" => $row[0],
                            "amount" => $row[1],
                            "description" => $row[2]
                          ];
                      })->toArray();
            
            DB::table('products')->insert($records);
  
        });
    }
}

Now you need to run following command for run all listed seeder:

php artisan db:seed --class=ProductSeeder

Now, you will able to see new row will be added in your products table.

Now I think you will understand how seeding works and we have to use it in our laravel app.

I hope it can help you...