I’m using Guzzle to download image file, the code as below

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<?php

$normal_url = 'http://example.com/path/to/image.png';
$special_char_url = 'http://example.com/path/to/ครีมอาบน้ำ.jpg';

function download($url) {
    $output = '/tmp/' . basename($url);

    $client = new \GuzzleHttp\Client();
    $res = $client->get($url, [
        'verify' => false,
        'sink' => $output,
    ]);
}

download($normal_url); // this 1 works
download($special_char_url); // this throw 404 error

The thai characters file name throw error

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GuzzleHttp\Exception\ClientException: Client error: `GET http://example.com/path/to/%E0%B8_%E0%B8%A3%E0%B8%B5%E0%B8%A1%E0%B8%AD%E0%B8%B2%E0%B8_%E0%B8_%E0%B9_%E0%B8%B3.jpg` resulted in a `404 Not Found` response:

The URL encoding is actually wrong, because I paste the URL to Chrome address bar, and then copy again, it gives

http://example.com/path/to/%E0%B8%84%E0%B8%A3%E0%B8%B5%E0%B8%A1%E0%B8%AD%E0%B8%B2%E0%B8%9A%E0%B8%99%E0%B9%89%E0%B8%B3.jpg

The Guzzle encoding has problem, so how I solve this is, use php curl, the raw php code…

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function download($url) {
    $output = '/tmp/' . basename($url);

    $fp = fopen($output, 'w+');
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_TIMEOUT, 50);
    curl_setopt($ch, CURLOPT_FILE, $fp);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
    curl_exec($ch);
    curl_close($ch);
    fclose($fp);
}

Get the code from here

Simple & working solution :)