問題經常使用處理方法整理

一、微力後臺上傳圖片有運營反饋無端被刪除的問題[生產線多臺服務器，圖片的上傳和刪除]

微力圖片刪除日誌

cd /data/logs/weili_sz/app/
cat api_20190111.log |grep image/delete|grep 圖片名稱 

二、微信JSSDK接入示例利用PHP文件作緩存

<?php
class JSSDK {
  private $appId;
  private $appSecret;

  public function __construct($appId, $appSecret) {
    $this->appId = $appId;
    $this->appSecret = $appSecret;
  }

  public function getSignPackage() {
    $jsapiTicket = $this->getJsApiTicket();

    // 注意 URL 必定要動態獲取，不能 hardcode.
    $protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";
    $url = "$protocol$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";

    $timestamp = time();
    $nonceStr = $this->createNonceStr();

    // 這裏參數的順序要按照 key 值 ASCII 碼升序排序
    $string = "jsapi_ticket=$jsapiTicket&noncestr=$nonceStr&timestamp=$timestamp&url=$url";

    $signature = sha1($string);

    $signPackage = array(
      "appId"     => $this->appId,
      "nonceStr"  => $nonceStr,
      "timestamp" => $timestamp,
      "url"       => $url,
      "signature" => $signature,
      "rawString" => $string
    );
    return $signPackage; 
  }

  private function createNonceStr($length = 16) {
    $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
    $str = "";
    for ($i = 0; $i < $length; $i++) {
      $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
    }
    return $str;
  }

  private function getJsApiTicket() {
    // jsapi_ticket 應該全局存儲與更新，如下代碼以寫入到文件中作示例
    $data = json_decode($this->get_php_file("jsapi_ticket.php"));
    if ($data->expire_time < time()) {
      $accessToken = $this->getAccessToken();
      // 若是是企業號用如下 URL 獲取 ticket
      // $url = "https://qyapi.weixin.qq.com/cgi-bin/get_jsapi_ticket?access_token=$accessToken";
      $url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=$accessToken";
      $res = json_decode($this->httpGet($url));
      $ticket = $res->ticket;
      if ($ticket) {
        $data->expire_time = time() + 7000;
        $data->jsapi_ticket = $ticket;
        $this->set_php_file("jsapi_ticket.php", json_encode($data));
      }
    } else {
      $ticket = $data->jsapi_ticket;
    }

    return $ticket;
  }

  private function getAccessToken() {
    // access_token 應該全局存儲與更新，如下代碼以寫入到文件中作示例
    $data = json_decode($this->get_php_file("access_token.php"));
    if ($data->expire_time < time()) {
      // 若是是企業號用如下URL獲取access_token
      // $url = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid=$this->appId&corpsecret=$this->appSecret";
      $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$this->appId&secret=$this->appSecret";
      $res = json_decode($this->httpGet($url));
      $access_token = $res->access_token;
      if ($access_token) {
        $data->expire_time = time() + 7000;
        $data->access_token = $access_token;
        $this->set_php_file("access_token.php", json_encode($data));
      }
    } else {
      $access_token = $data->access_token;
    }
    return $access_token;
  }

  private function httpGet($url) {
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($curl, CURLOPT_TIMEOUT, 500);
    // 爲保證第三方服務器與微信服務器之間數據傳輸的安全性，全部微信接口採用https方式調用，必須使用下面2行代碼打開ssl安全校驗。
    // 若是在部署過程當中代碼在此處驗證失敗，請到 http://curl.haxx.se/ca/cacert.pem 下載新的證書判別文件。
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, true);
    curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, true);
    curl_setopt($curl, CURLOPT_URL, $url);

    $res = curl_exec($curl);
    curl_close($curl);

    return $res;
  }

  private function get_php_file($filename) {
    return trim(substr(file_get_contents($filename), 15));
  }
  private function set_php_file($filename, $content) {
    $fp = fopen($filename, "w");
    fwrite($fp, "<?php exit();?>" . $content);
    fclose($fp);
  }
}

jsapi_ticket.php

<?php exit();?>
{"jsapi_ticket":"","expire_time":0}

三、github Composer的使用

PHP 中文工具類，支持漢字轉拼音、拼音分詞、簡繁互轉、數字、金額大寫

https://github.com/Yurunsoft/ChineseUtil

使用說明

Composer 直接安裝

composer require yurunsoft/chinese-util

Composer 項目配置引入

"require": {
    "yurunsoft/chinese-util" : "~1.0"
}

功能

<?php
//在github示例的基礎上新加以下一行代碼
include './autoload.php'; use \Yurun\Util\Chinese;
use \Yurun\Util\Chinese\Pinyin;
$string = '恭喜發財！123';
//echo $string, PHP_EOL;

/*echo '全拼:', PHP_EOL;
var_dump(Chinese::toPinyin($string, Pinyin::CONVERT_MODE_PINYIN));*/

echo '首字母:', PHP_EOL;
print_r(Chinese::toPinyin($string, Pinyin::CONVERT_MODE_PINYIN_FIRST));

/*echo '讀音:', PHP_EOL;
var_dump(Chinese::toPinyin($string, Pinyin::CONVERT_MODE_PINYIN_SOUND));

echo '讀音數字:', PHP_EOL;
var_dump(Chinese::toPinyin($string, Pinyin::CONVERT_MODE_PINYIN_SOUND_NUMBER));

echo '自選返回格式 + 以文本格式返回 + 自定義分隔符:', PHP_EOL;
var_dump(Chinese::toPinyin($string, Pinyin::CONVERT_MODE_PINYIN | Pinyin::CONVERT_MODE_PINYIN_SOUND_NUMBER, ' '));

echo '全部結果:', PHP_EOL;
var_dump(Chinese::toPinyin($string));

echo '不分割無拼音字符:', PHP_EOL;
var_dump(Chinese::toPinyin($string, Pinyin::CONVERT_MODE_PINYIN, ' ', false));*/

 四、spl_autoload_register自動加載，實現多個__autoload()函數

說明

spl_autoload_register ([ callable $autoload_function [, bool $throw = true [, bool $prepend = false ]]] ) : bool

將函數註冊到SPL __autoload函數隊列中。若是該隊列中的函數還沒有激活，則激活它們。

若是在你的程序中已經實現了__autoload()函數，它必須顯式註冊到__autoload()隊列中。由於 spl_autoload_register()函數會將Zend Engine中的__autoload()函數取代爲spl_autoload()或spl_autoload_call()。

若是須要多條 autoload 函數，spl_autoload_register() 知足了此類需求。 它實際上建立了 autoload 函數的隊列，按定義時的順序逐個執行。相比之下， __autoload() 只能夠定義一次。

 

五、打包建議用tar命令，--exclude排除打包的文件或者目錄

tar -zcvf afish.tar.gz pardir --exclude=pardir/file1 --exclude=pardir/dir1

 

六、壓縮包的上傳

去掉勾選 Upload files as ASCII

binary 上傳  sudo rz -by 

ascii 上傳 sudo rz -ay

 

七、 跨域jsonp get請求

八、codeigniter項目開啓錯誤日誌頁面顯示

index.php

 

九、div標籤屬性style pointer-events: none 禁止頁面點擊事件，適合把頁面做爲預覽圖。

<div class="box1" style="margin-top:0; pointer-events: none"> 
   <p class="txt"> </p>
   <center>
    test大轉盤
   </center> 
   <p></p> 
   <!-- <img src="http://weili.dev.com.cn/uploads/activity_13_1501480292.jpg" class="logo" />             --> 
   <iframe src="http://activity.cytxl.com.cn/static/html/super_lottery/h5/round_8/index.html?super_lottery_id=22" style="width: 320px; height: 568px; border: none; "></iframe> 
  </div>