Laravel Exception: Both parameters should have an equal number of elements

Question

I'm new to laravel, and I'm making an app that need a .CSV data to be imported into the database, the data has been succesfully imported however i faced this issue :

ErrorException array_combine(): Both parameters should have an equal number of elements

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Accounts;
class AccountController extends Controller
{
    public function show(){
        return view ('upload');
    }
    public function store(Request $request){


        $file = $request->file('upload-file');
        $csvData = file_get_contents($file);

        $rows = array_map("str_getcsv", explode("\n", $csvData));
    // dd($rows);
        $header = array_shift($rows);
//    dd($header);
        foreach ($rows as $row) {

            $row = array_combine($header, $row);
            if (count($header) != count($row)) {
                continue;
              }
            set_time_limit(0);
            Accounts::create([
                'AccountClass' => $row['Classe'],
                'AccountNumber' => $row['Compte'],
                'AccountDesc' => $row['Desc'],
                'active' => 1,
            ]);
        }

        return view ('home');

    }

}

would you point me to the right direction thank you in advance

Possible duplicate of Warning: array_combine(): Both parameters should have an equal number of elements — sh1hab
– sh1hab, Commented Oct 23, 2019 at 18:11
Put count($header) != count($row) part before doing array_combine() and dump both of them to see the difference — Vladan
– Vladan, Commented Oct 23, 2019 at 19:49

Nick · Accepted Answer · 2019-10-23 18:24:03Z

1

This error appears when you try to combine two arrays with unequal length.

$arr1 = ["a", "s", "d"];
$arr2 = [1, 2, 3];

if(count($arr1) == count($arr2)){
    $result = array_combine($arr1, $arr2);
} else{
    echo "Error array combine";
}

answered Oct 23, 2019 at 18:24

Nick

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2 Comments

ana bel Over a year ago

i have first array 0 => "1" 1 => "1" 2 => "COMPTES DE FINANCEMENT PERMANENT" and second array array:3 [▼ 0 => "Classe" 1 => "Compte" 2 => "Desc" ] ;i guess they are equal

Vladan Over a year ago

@anabel the problem is that you have duplicate values for keys, array_combine() tries to take values from the first array as keys and the values from the second array as values of the new array, i.e. tries to do this 1 => "Classe" 1 => "Compte" "COMPTES DE FINANCEMENT PERMANENT" => "Desc" The problem here is that you have duplicate keys (1 being duplicate)

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