Laravel 10 - Convert CSV file to JSON/Array

May 01, 2023 · Article · 4 min, 813 words

Hello Artisan, today I'll show you how to convert a CSV file into JSON. JSON is the globally used format which we can use in every language. So, let's start how we can easily convert an CSV file into JSON.

Note: Tested on Laravel 10.0

Table of Contents

  1. Create and Setup Controller
  2. Define Routes
  3. Setup View
  4. Output

Create and Setup Controller

First, we'll create a controller called ConverterController.php where we'll write our logic to convert the uploaded CSV file into . So, fire the below command in terminal to generate controller first.

php artisan make:controller ConverterController

It'll create a controller called ConverterController under App/Http/Controllers, now what we'll do is to add logic to our controller. See the below source code.


namespace App\Http\Controllers;

use Illuminate\Http\Request;

class ConverterController extends Controller
    public function csvToJson(Request $request)
        try {
            $filePath = $request->file('csv_file');
            $keys = $newArray = $data = [];
            if (($handle = fopen($filePath, 'r')) !== FALSE) {
                $i = 0;
                $delimiter = ',';
                while (($lineArray = fgetcsv($handle, 4000, $delimiter, '"')) !== FALSE) {
                    for ($j = 0; $j < count($lineArray); $j  ) {
                        $data[$i][$j] = $lineArray[$j];
                    $i  ;
            $count = count($data) - 1;
            $labels = array_shift($data);
            foreach ($labels as $label) {
                $keys[] = $label;
            $keys[] = 'id';
            for ($i = 0; $i < $count; $i  ) {
                $data[$i][] = $i;
            for ($j = 0; $j < $count; $j  ) {
                $d = array_combine($keys, $data[$j]);
                $newArray[$j] = $d;
        } catch (\Exception $e) {

Define Routes

Now we'll add routes which will let us show the form where user can upload the csv file. So, let's add the below route to our web.php.

Route::post('json-converter', [\App\Http\Controllers\ConverterController::class , 'csvToJson'])->name('json.converter');

Setup View

Now we'll build a form where user can upload the CSV file. For that we'll use welcome.blade.php which comes with laravel by default. So, let's see the below source code.

<!DOCTYPE html>
    <title>Laravel 10 Sweet Alert Confirm Delete Example -</title>
    <meta name="csrf-token" content="{{ csrf_token() }}">
    <link href="[email protected]/dist/css/bootstrap.min.css" rel="stylesheet">
    <link href="" rel="stylesheet">

<div class="container">
    <form action="{{ route('json.converter') }}" method="post" enctype="multipart/form-data">@csrf
        <div class="row">
            <div class="col-lg-12">
                <div class="form-group">
                    <label for="csv_file">CSV File</label>
                    <input type="file" name="csv_file" id="csv_file" class="form-control">
            <div class="col-lg-12">
                <button type="submit" class="btn btn-primary">Save</button>


And finally, we're ready with our setup. It's time to check our output. Now go to, If everything goes well (hope so) we can see the below output.


That's it for today. I hope you've enjoyed this tutorial. You can also download this tutorial from GitHub. Thanks for reading. 🙂


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