初始化代码

application/api/model/ImgCaptcha.php

@@ -0,0 +1,54 @@
+<?php
+
+
+namespace app\api\model;
+
+
+
+
+use app\common\component\captcha\Captcha;
+
+class ImgCaptcha
+{
+    protected $config = [
+        'codeSet' => '0123456789',
+        // 验证码字体大小
+        'fontSize' => 30,
+        // 验证码位数
+        'length' => 4,
+        // 关闭验证码杂点
+        'useNoise' => false,
+        //过期时间
+        'expire' => 600,
+        'useCurve' => false,
+    ];
+    //生成验证码
+    public function create_captcha()
+    {
+        $captcha = new Captcha($this->config);
+        $id = $this->generateRandom(8). date('YmdHis');
+        $res = $captcha->entry($id);
+        $base64_image = "data:image/png;base64," . base64_encode($res->getData());
+        return ['code' => 200, 'msg' => '获取数据成功', 'data' => ['image' => $base64_image, 'key' => $id]];
+    }
+    //获取随机数
+    private function generateRandom($num = 0)
+    {
+        $code = strtolower('ABCDEFGHIJKLMNOPQRSTUVWXYZ123456789');
+        $str = '';
+        for ($i = 0; $i < $num; $i++) {
+            $str .= $code[mt_rand(0, strlen($code) - 1)];
+        }
+        return $str;
+    }
+    //验证验证码
+    public function check_captcha($code, $key)
+    {
+        $captcha = new Captcha($this->config);
+        $res = $captcha->check($code, $key);
+        if ($res === true) {
+            return ['code' => 200, 'msg' => '验证成功', 'data' => null];
+        }
+        return ['code' => 201, 'msg' => '验证失败', 'data' => null];
+    }
+}