Detailed explanation of PHP script to automatically identify verification code and query car violations

I often check whether my car has any violations, so I wrote this script to help check whether my car has any violations. Mainly used to simulate form submission and verification code recognition with cookies. Let’s learn how to write the specific script through this article

I often check whether my car has any violations, so I wrote this script to help check whether my car has any violations.

Mainly used to simulate form submission and verification code identification with cookies.

Tesseract-OCR

Verification code recognition technology, Tesseract-OCR: https://github.com/tesseract-ocr/tesseract

Installation Tutorial: https://github.com/tesseract-ocr/tesseract

Tesseract-Ocr-For-PHP

Encapsulate the commands that need to be executed

https://github.com/thiagoalessio/tesseract-ocr-for-php

Directly load the script without any optimization, just briefly understand:

PHP

#

<?php
require &#39;TesseractOCR.php&#39;;
function weizhang($car_code, $fdjh)
{
  $shanghui = mb_substr($car_code, 0, 1, &#39;utf-8&#39;);
  $pre = array(
    &#39;冀&#39; => &#39;he&#39;,
    &#39;云&#39; => &#39;yn&#39;
  );
  $url_pre = $pre[$shanghui];
  $headers = array(
    &#39;Host: &#39;.$url_pre.&#39;.122.gov.cn&#39;,
    &#39;Origin: http://&#39;.$url_pre.&#39;.122.gov.cn&#39;,
    &#39;Referer: http://&#39;.$url_pre.&#39;.122.gov.cn/views/inquiry.html?q=j&#39;,
    &#39;User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.75 Safari/537.36 QQBrowser/4.1.4132.400&#39;
  );
  //初始化变量
  $cookie_file = &#39;cookie.txt&#39;;
  $login_url = "http://$url_pre.122.gov.cn/views/inquiry.html?q=j";
  $post_url = "http://$url_pre.122.gov.cn/m/publicquery/vio";
  $verify_code_url = "http://$url_pre.122.gov.cn/captcha?nocache=".time();
  $curl = curl_init();
  $timeout = 5;
  curl_setopt($curl, CURLOPT_URL, $login_url);
  curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
  curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, $timeout);
  curl_setopt($curl, CURLOPT_COOKIEJAR, $cookie_file); //获取COOKIE并存储
  $contents = curl_exec($curl);
  curl_close($curl);
  $curl = curl_init();
  curl_setopt($curl, CURLOPT_URL, $verify_code_url);
  curl_setopt($curl, CURLOPT_COOKIEFILE, $cookie_file);
  curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
  curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
  $img = curl_exec($curl);
  curl_close($curl);
  $fp = fopen("verifyCode.jpg", "w");
  fwrite($fp, $img);
  fclose($fp);
  $code = (new TesseractOCR(&#39;verifyCode.jpg&#39;))->psm(7)->run();
 $code = explode("\n", $code);
 $code = $code[1];
  echo $code.PHP_EOL;
  if (strlen($code) != 4) {
    return json_encode(array(&#39;code&#39;=>500));
  }
  $data = array(
    &#39;hpzl&#39;=>&#39;02&#39;,
    &#39;hphm1b&#39; => substr($car_code, -6),
    &#39;hphm&#39; => $car_code,
    &#39;fdjh&#39; => $fdjh,
    &#39;captcha&#39; => $code,
    &#39;qm&#39; => &#39;wf&#39;,
    &#39;page&#39; => 1
  );
  $curl = curl_init();
  curl_setopt($curl, CURLOPT_URL, $post_url);
  curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
  curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
  curl_setopt($curl, CURLOPT_COOKIEFILE, $cookie_file);
  $result = curl_exec($curl);
  curl_close($curl);
  //unlink($cookie_file);
  //unlink(&#39;verifyCode.jpg&#39;);
  return $result;
}
$count = 0;
// 车牌号
$car_code = &#39;冀Dxxxxx&#39;;
// 发动机后6位
$fdjh = &#39;xxxxxx&#39;;
while (true) {
  $count++;
  if ($count>50) {
    exit(&#39;查询失败&#39;);
  }
  $res = weizhang($car_code, $fdjh);
  $info = json_decode($res, true);
  echo $res.PHP_EOL;
  if ($info[&#39;code&#39;] == 200) {
    echo &#39;车牌号: &#39;. $car_code.PHP_EOL;
    echo &#39;未处理违章数: &#39;.$info[&#39;data&#39;][&#39;content&#39;][&#39;zs&#39;];
    exit();
  }
}

Execution effect

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