php项目开发中用到的工具函数

本是古典何须时尚 2022-05-30 01:54 206阅读 0赞

1.获得毫秒级别的时间戳

public static function get_millisecond() { 
            //获取毫秒的时间戳
            $time = explode(" ", microtime());
            $time = $time[1] . substr($time[0], 2, 3);
            return $time;
        }

2读取文件内容

public static function file_read($file_path) { 
    
            if (file_exists($file_path)) {
                $fp = fopen($file_path, "r");
                $str = fread($fp, filesize($file_path));//指定读取大小，这里把整个文件内容读取出来
                $str = str_replace("\r\n", "<br />", $str);
                fclose($fp);
                return $str;
            } else {
                return false;
            }
        }

3产生随机字符串，不长于32位

public static function get_nonce_number($length = 11) { 
            $chars = "0123456789";
            $str = "";
            for ($i = 0; $i < $length; $i++) {
                $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
            }
            return $str;
        }

4.生成订单详情号 默认为16位

public static function get_order_id($length = 16) { 
            //见方法一，获得毫秒级别时间戳
            $time = self::get_millisecond();
            $len = $length - 13;
            $str = self::get_nonce_number($len);
            if (strlen($time) != 13) {
                $orderId = $str . $time . rand(1, 9);
            } else {
                $orderId = $str . $time;
            }
            return $orderId;
    
        }

5.随机产生字母和数字（有重复的可能性）

public static function randomkeys($length) { 
            $returnStr = '';
            $pattern = '1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLOMNOPQRSTUVWXYZ';
            for ($i = 0; $i < $length; $i++) {
                $returnStr .= $pattern{mt_rand(0, 61)}; //生成php随机数
            }
            return $returnStr;
        }

6.生成6位数验证码

public static function random_code($length = 6) { 
            $code = rand(pow(10, ($length - 1)), pow(10, $length) - 1);
            return "$code";
        }

7.防sql注入,xss攻击

public static function clean($str) { 
            $str = trim($str);
            $str = strip_tags($str);
            $str = stripslashes($str);
            $str = addslashes($str);
            $str = rawurldecode($str);
            $str = quotemeta($str);
            $str = htmlspecialchars($str);
            return $str;
        }

8.接收post或者get参数

public static function get_input($name) { 
            $request = Yii::$app->request;
            if (isset($_GET[$name])) {
                $value = $request->get($name);
            } elseif (isset($_POST[$name])) {
                $value = $request->post($name);
            } else {
                $value = '';
            }
            return $value;
        }

9.加密方法

public static function aes_encrypt($str) { 
    
            $privateKey = "私钥文件字符串";
            $iv = "公钥文件字符串";
            //加密
            $encrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $privateKey, $str, MCRYPT_MODE_CBC, $iv);
    // return urlencode(base64_encode($encrypted));
            return base64_encode($encrypted);
        }

10.解密方法

public static function aes_decrypt($str) { 
            $privateKey = "私钥文件字符串";
            $iv = "公钥文件字符串";
            $encryptedData = base64_decode($str);
            $decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $privateKey, $encryptedData, MCRYPT_MODE_CBC, $iv);
            $decrypted = rtrim($decrypted, "\0");
            return $decrypted;
        }

11.curl模拟带header头信息的get请求

public static function curl_get($request_url,$session=[]) { 
            if($session){
                $ch = curl_init();
                $header = ["session:".$session]; //设置一个你的浏览器agent的header
                curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
                curl_setopt($ch, CURLOPT_HEADER, 0); //返回response头部信息
                curl_setopt($ch, CURLOPT_URL, $request_url);
                curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);//不在页面输出 返回数据
                $data_json=curl_exec($ch);
                curl_close($ch);
            }else{
                $curl = new Curl();
                $data_json = $curl->get($request_url);
            }
            $data = json_decode($data_json, true);
            return $data;
        }

12.curl模拟带header头信息的post方法

public static function curl_post($request_url,$params,$session=""){ 
            if($session){
                $curl = curl_init();  //初始化
                $header = ["session:".$session]; //设置一个你的浏览器agent的header
                curl_setopt($curl,CURLOPT_URL,$request_url);  //设置url
    // curl_setopt($curl,CURLOPT_HTTPAUTH,CURLAUTH_BASIC); //设置http验证方法
                curl_setopt($curl,CURLOPT_HTTPHEADER,$header);  //设置头信息
                curl_setopt($curl,CURLOPT_RETURNTRANSFER,1);  //设置curl_exec获取的信息的返回方式
                curl_setopt($curl,CURLOPT_POST,1);  //设置发送方式为post请求
                curl_setopt($curl,CURLOPT_POSTFIELDS,$params);  //设置post的数据
                curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);//不在页面输出 返回数据
                $data_json = curl_exec($curl);
                if($data_json === false){
                    echo curl_errno($curl);
                    exit();
                }
                curl_close($curl);
            }else{
                $curl = new Curl();
                $data_json = $curl->setOption(CURLOPT_POSTFIELDS, http_build_query($params))->post($request_url);
            }
            $data = json_decode($data_json, true);
            return $data;
        }

13.远程下载图片到本地

public static function downloadImage($url, $user_token) { 
            $ch = curl_init();
            curl_setopt($ch, CURLOPT_URL, $url);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
            curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
            $file = curl_exec($ch);
            curl_close($ch);
            $filename=$user_token.".jpg";
            $path="./images/user/".$filename;
            self::saveAsImage($file, $path);
        }
        private  static function saveAsImage($file, $path) { 
    
            $resource = fopen($path, 'a');
            fwrite($resource, $file);
            fclose($resource);
        }

14.七牛上传图片

public static function actionImg($filename,$filepath) { 
            $auth = new Auth(trim(Yii::$app->params["qiniu_params"]["accessKey"]),
                trim(Yii::$app->params["qiniu_params"]["secretKey"]));
            $uploadMgr = new UploadManager();
            $token = $auth->uploadToken(trim(Yii::$app->params["qiniu_params"]["upload_path"]));
            list($succ, $fail) = $uploadMgr->putFile($token,
                $filename,
                $filepath
            );
            $url = Yii::$app->params["qiniu_params"]["picture_url"] . "/" . $succ["key"];
            return $url;
        }

15调试日志记录

public static function debug_log($message) { 
            $logfile = Yii::$app->basePath . '/runtime/' . date("Ymd") . ".log";
            $time = date("Y-m-d H:i:s", time());
            $fp = @fopen($logfile, 'a');
            @fwrite($fp, $time . "\r\n");
            @fwrite($fp, var_export($message, true) . "\r\n" . "\r\n");
            @fclose($fp);
        }

16获取本周第一天和最后一天时间

public static function get_this_week(){ 
            $timestamp = time();
            $monday_date = date('Y-m-d', $timestamp-86400*date('w',$timestamp)+(date('w',$timestamp)>0?86400:-518400));
            $sunday_date =date("Y-m-d",strtotime($monday_date) + 518400);
            $this_week=[
                "monday"=>$monday_date . " 00:00:00",
                "sunday"=>$sunday_date . " 23:59:59"
            ];
            return $this_week;
        }

17获取上一周第一天和最后一天的时间

public static function get_last_week(){ 
            $timestamp = time();
            $monday_date = date('Y-m-d', $timestamp-86400*date('w',$timestamp)+(date('w',$timestamp)>0?86400:-518400)-7*24*3600);
            $sunday_date =date("Y-m-d",strtotime($monday_date) + 518400);
            $this_week=[
                "monday"=>$monday_date . " 00:00:00",
                "sunday"=>$sunday_date . " 23:59:59"
            ];
            return $this_week;
        }

18yii2分页

public static function page_info($query, $Page = 1, $search = null, $time = null, $orderby = "") { 
            if ($search) {
                $query = $query->andFilterWhere($search);
            }
            if ($time) {
                $query = $query->andWhere($time);
            }
            $data['total'] = $query->count();
            if (!$data['total']) {
                return ['page' => $Page, 'total' => 0, 'data' => [], "pagecount" => 0];
            }
            $page_num = Yii::$app->params["page_num"];
            $page = (ceil($data['total'] / $page_num) < $Page) ? ceil($data['total'] / $page_num) : $Page;
            $data['page'] = $Page;
            $data['pagecount'] = intval(ceil($data["total"] / $page_num));
            $data['data'] = $query->offset(($page - 1) * $page_num)->limit($page_num)->orderby($orderby)->asArray()->all();
            return $data;
        }