分享下，实现图片验证返回网址？

// 将图片写入文件中
file_put_contents($captcha->inline(), public_path("static/{$key}.jpg"));
// 返回的URL地址为
$arra = [
'captcha_img_url' => asset("static/{$key}.jpg");
];Copy

public function show(Request $request) {
        $captchaData = Cache::get($request->captcha_key);
        if (!$captchaData) {
            exit();
        }
        $captchaBuilder = new CaptchaBuilder($captchaData['captcha']);
        $captchaBuilder->build();
        header('Content-type: image/jpeg');
        $captchaBuilder->output();
    }Copy

<?php

use Gregwar\Captcha\CaptchaBuilder;

$builder = new CaptchaBuilder;
$builder->build();
You can then save it to a file :

<?php

$builder->save('out.jpg');
Or output it directly :

<?php

header('Content-type: image/jpeg');
$builder->output();
Or inline it directly in the HTML page:

<img src="<?php echo $builder->inline(); ?>" />Copy