Laravel? ???? CSV ????: ???? ?? ??
Laravel ???? ?? ?? ??? ?? ???? CSV ??? ???? ?? ??? ????. ? ????? ??? ??? ???? ??? ??? ?? Laravel? ?? ? PHP? fputcsv ??? ???? Laravel CSV ???? ??? ???? ????? ??? ??? ?????.
? ??? ???? ??
? ?? ??? ??? ?? ? ?? ?? ??? ?????.
- ???: Laravel? ?? ????? ?? ??? ??? ???? ???? ??? ??? ??????.
- ???: ??? ?? ?? ?? ??? ??? ??? ?????.
-
???:
fputcsv? ???? CSV ??? ????? ?? ?????? ???? ????.
?? ??
?? ??? ??? CSV ????? ?????.
use Illuminate\Database\Eloquent\Collection;
$chunkSize = 500; // Adjustable chunk size
$outputStream = fopen('php://stdout', 'wb+'); // Output stream to stdout
// Write CSV header row
fputcsv($outputStream, ['email', 'name']);
// Chunk-based data processing and export
User::select(['email', 'name'])
->chunk($chunkSize, function (Collection $users) use ($outputStream) {
$users->each(function ($user) use ($outputStream) {
fputcsv($outputStream, [$user->email, $user->name]);
});
});
?? ??
-
$chunkSize = 500;: ??? ???? ??? ?? ?????. ??? ??? ?? ???? ?? ??? ?? ?????. -
$outputStream = fopen('php://stdout', 'wb ');: ?? ???? ???? ?? ??(stdout)?? ???. ?? ?? ??? ???? ?? ????? ?? ???? ? ????. -
fputcsv($outputStream, ['email', 'name']);: CSV ?? ?? ?????. -
User::select(['email', 'name'])->chunk($chunkSize, ...);: Laravel?chunk????User??? ????$chunkSize?? ???? ?????.chunk?? ?? ??? ? ??? ?????. -
$users->each(function ($user) use ($outputStream) { ... });: ??? ? ???? ????fputcsv? ???? ???? ??? CSV? ???.
?? ????
??? ??? Artisan ??? ????? ??? ?? ??? ?????.
<?php
namespace App\Console\Commands;
use Illuminate\Console\Command;
use Illuminate\Database\Eloquent\Collection;
use App\Models\User;
class ExportUsersToCsv extends Command
{
protected $signature = 'export:users';
protected $description = 'Export users to CSV';
public function handle()
{
// ... (Code from previous example) ...
}
}
????? ???? Artisan ??php artisan export:users? ?????.
??
? ??? ??? ??? ?? ???? ?? ??? ??? ???? Laravel?? CSV ????? ?? ????? ?? ??? ???? ?????. ?? ?? ??? ?? $chunkSize ??? ???? ?? ?? ???.
? ??? Laravel?? ?? CSV ???? ?? ??? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!
? AI ??
Undress AI Tool
??? ???? ??
Undresser.AI Undress
???? ?? ??? ??? ?? AI ?? ?
AI Clothes Remover
???? ?? ???? ??? AI ?????.
Clothoff.io
AI ? ???
Video Face Swap
??? ??? AI ?? ?? ??? ???? ?? ???? ??? ?? ????!
?? ??
??? ??
???++7.3.1
???? ?? ?? ?? ???
SublimeText3 ??? ??
??? ??, ???? ?? ????.
???? 13.0.1 ???
??? PHP ?? ?? ??
???? CS6
??? ? ?? ??
SublimeText3 Mac ??
? ??? ?? ?? ?????(SublimeText3)
??? ??
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