PHP Some tool functions introduced

This article is mainly to share with you some PHP tool functions introduced, these are more commonly used tool functions, hope to help everyone.

1. Get millisecond-level timestamps

    public static function Get_millisecond ()    {        //Gets the timestamp of milliseconds        $time = Explode ("", Microtime ());        $time = $time [1]. substr ($time [0], 2, 3);        return $time;    }

2 Read File contents

    public static function File_read ($file _path)    {        if (file_exists ($file _path)) {            $fp = fopen ($file _path, "R" );            $str = Fread ($fp, FileSize ($file _path));//Specify the read size, where the entire contents of the file are read            $str = Str_replace ("\ r \ n", "<br/>", $str); C13/>fclose ($FP);            return $str;        } else {            return false;        }    }

3 Generate random string, not longer than 32 bits

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

4. Generate Order detail number by default to 16 bits

    public static function get_order_id ($length = +)    {        //See method one for millisecond-level timestamp        $time = Self::get_millisecond (); c13/> $len = $length -13;        $str = Self::get_nonce_number ($len);        if (strlen ($time)! =) {            $orderId = $str. $time. Rand (1, 9);        } else {            $orderId = $str. $time;        }        return $orderId;    }

5. Random generation of letters and numbers (with the possibility of repetition)

    public static function Randomkeys ($length)    {        $returnStr = ';        $pattern = ' 1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLOMNOPQRSTUVWXYZ ';        for ($i = 0; $i < $length; $i + +) {            $returnStr. = $pattern {Mt_rand (0, 61)};//Generate PHP random number        }        return $returnStr; c8/>}

6. Generate 6-digit verification Code

    public static function Random_code ($length = 6)    {        $code = rand (POW (1, ($length-1)), POW ($length)-); 
  return "$code";    }

7. Anti-SQL injection, XSS attack

    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. Receive post or get parameters

    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. Encryption method

    public static function Aes_encrypt ($STR)    {        $privateKey = "Private key file string";        $iv = "Public key file string";        Encryption        $encrypted = Mcrypt_encrypt (mcrypt_rijndael_128, $privateKey, $str, MCRYPT_MODE_CBC, $IV);//        return UrlEncode (Base64_encode ($encrypted));        Return Base64_encode ($encrypted);    }

10. Decryption method

    public static function Aes_decrypt ($STR)    {        $privateKey = "Private key file string";        $iv = "Public key file string";        $encryptedData = Base64_decode ($STR);        $decrypted = Mcrypt_decrypt (mcrypt_rijndael_128, $privateKey, $encryptedData, MCRYPT_MODE_CBC, $iv);        $decrypted = RTrim ($decrypted, "n");        return $decrypted;    }

11.curl simulation of Get requests with header information

    public static function Curl_get ($request _url, $session =[])    {        if ($session) {            $ch = Curl_init ();            $header = ["Session:". $session]; Set up a header for your browser agent            curl_setopt ($ch, Curlopt_httpheader, $header);            curl_setopt ($ch, Curlopt_header, 0); Return response header information            curl_setopt ($ch, Curlopt_url, $request _url);            curl_setopt ($ch, Curlopt_returntransfer, 1);//Do not  return data            $data _json=curl_exec ($ch) on the page output;            Curl_close ($ch);        } else{            $curl = new Curl ();            $data _json = $curl->get ($request _url);        }        $data = Json_decode ($data _json, true);        return $data;    }

12.curl Post method for simulating header information

    public static function Curl_post ($request _url, $params, $session = "") {if ($session) {$curl = Curl_init (  ); Initialize $header = ["Session:". $session];  Set up a header for your browser agent curl_setopt ($curl, Curlopt_url, $request _url);  Set url//curl_setopt ($curl, Curlopt_httpauth,curlauth_basic);  Set HTTP authentication method curl_setopt ($curl, Curlopt_httpheader, $header);  Set Header information curl_setopt ($curl, curlopt_returntransfer,1);  Sets the return mode of the information obtained by Curl_exec curl_setopt ($curl, curlopt_post,1);  Set send mode for POST request curl_setopt ($curl, Curlopt_postfields, $params); Set post Data curl_setopt ($curl, Curlopt_returntransfer, 1);//Do not return data from the page output $data _json = curl_exec ($cur            L);                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. Remotely download images to local

    public static function Downloadimage ($url, $user _token)    {        $ch = Curl_init ();        curl_setopt ($ch, Curlopt_url, $url);        curl_setopt ($ch, Curlopt_returntransfer, 1);        curl_setopt ($ch, Curlopt_connecttimeout,);        curl_setopt ($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. Seven KN upload image

 public static function actionimg ($filename, $filepath) {$auth = new Au Th (yii:: $app->params["Qiniu_params" ["AccessKey"]), Trim (yii:: $app->params["Qiniu_params" ["Secretke        Y "]));        $UPLOADMGR = new UploadManager ();        $token = $auth->uploadtoken (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; }