PHP将远程图片URL转换为Base64编码的优化方法

$imageUrl = 'https://projectstaging.s3.ap-southeast-2.amazonaws.com/2ade1776f74aa967de6578bbbceca692c274aced.png';
$imageType = pathinfo($imageUrl, PATHINFO_EXTENSION); // 获取图片扩展名

// 尝试获取图片内容
$imageData = file_get_contents($imageUrl);

if ($imageData !== false) {
    $base64Image = 'data:image/' . $imageType . ';base64,' . base64_encode($imageData);
    // 此时 $base64Image 包含了完整的Base64编码字符串
    echo $base64Image;
} else {
    echo "无法获取远程图片内容。";
}

<?php

use Illuminate\Support\Facades\Http;

/**
 * 将远程图片URL转换为Base64编码字符串。
 *
 * @param string $url 远程图片URL
 * @return string|false Base64编码字符串或在失败时返回false
 */
function convertImagetoBase64(string $url)
{
    try {
        // 使用Http门面发送GET请求获取图片内容
        $response = Http::timeout(10)->get($url); // 设置10秒超时

        // 检查请求是否成功
        if ($response->successful()) {
            $imageData = $response->body(); // 获取响应体，即图片二进制数据
            $urlParts = pathinfo($url);
            $extension = $urlParts['extension'] ?? 'jpeg'; // 默认扩展名，防止无法获取

            // 构造Base64数据URI
            return 'data:image/' . $extension . ';base64,' . base64_encode($imageData);
        } else {
            // 请求失败，可以根据需要记录日志或抛出异常
            error_log("Failed to fetch image from URL: {$url} with status: {$response->status()}");
            return false;
        }
    } catch (\Throwable $e) {
        // 捕获网络连接、DNS解析等异常
        error_log("Error fetching image from URL {$url}: " . $e->getMessage());
        return false;
    }
}

// 示例用法
$imageUrl = 'https://snapformsstaging.s3.ap-southeast-2.amazonaws.com/80f1d508b80a16f7b114009c62a2794ff45a84b6.png';
$base64Txt = convertImagetoBase64($imageUrl);

if ($base64Txt) {
    echo '<img src="' . $base64Txt . '" alt="Base64 Image">';
} else {
    echo 'Failed to convert image to Base64.';
}

?>

<?php

require 'vendor/autoload.php'; // 引入Composer自动加载文件

use GuzzleHttp\Client;
use GuzzleHttp\Exception\RequestException;

/**
 * 将远程图片URL转换为Base64编码字符串（使用Guzzle）。
 *
 * @param string $url 远程图片URL
 * @return string|false Base64编码字符串或在失败时返回false
 */
function convertImagetoBase64WithGuzzle(string $url)
{
    $client = new Client();
    try {
        $response = $client->get($url, ['timeout' => 10]); // 设置10秒超时

        if ($response->getStatusCode() === 200) {
            $imageData = $response->getBody()->getContents(); // 获取响应体内容
            $urlParts = pathinfo($url);
            $extension = $urlParts['extension'] ?? 'jpeg';

            return 'data:image/' . $extension . ';base64,' . base64_encode($imageData);
        } else {
            error_log("Failed to fetch image from URL: {$url} with status: {$response->getStatusCode()}");
            return false;
        }
    } catch (RequestException $e) {
        error_log("Guzzle Request Exception for URL {$url}: " . $e->getMessage());
        return false;
    } catch (\Throwable $e) {
        error_log("General Error for URL {$url}: " . $e->getMessage());
        return false;
    }
}

// 示例用法
$imageUrl = 'https://snapformsstaging.s3.ap-southeast-2.amazonaws.com/80f1d508b80a16f7b114009c62a2794ff45a84b6.png';
$base64Txt = convertImagetoBase64WithGuzzle($imageUrl);

if ($base64Txt) {
    echo '<img src="' . $base64Txt . '" alt="Base64 Image">';
} else {
    echo 'Failed to convert image to Base64.';
}

?>