PHP randStr函数代码示例

 function security()
 {
     $_SESSION['verify'] = strtolower(randStr(4));
     loadLib('Image');
     Image::verify($_SESSION['verify'], 50, 33);
     //Image::security($_SESSION['verify'], 80, 35, 20, CORE_PATH.'font/t1.ttf');
 }

 /**
  * Generate and return a token, save it to session.
  *
  * @param string $key Name of the key.
  *
  * @return string
  */
 public function generate($key = '')
 {
     $token = base64_encode(time() . sha1(md5($_SERVER['REMOTE_ADDR'] . $_SERVER['HTTP_USER_AGENT'])) . randStr(255));
     if (empty($_SESSION['CSRF_' . $key])) {
         $_SESSION['CSRF_' . $key] = $token;
         return $token;
     } else {
         return $_SESSION['CSRF_' . $key];
     }
 }

 /**
  **
  **生成验证码
  **/
 function yanzhengmaAction()
 {
     //session_register('SafeCode');
     $type = 'png';
     $width = 50;
     $height = 20;
     //header("Content-type: image/".$type);
     @ob_end_clean();
     srand((double) microtime() * 1000000);
     $randval = randStr(4, "");
     if ($type != 'png' && function_exists('imagecreatetruecolor')) {
         $im = @imagecreatetruecolor($width, $height);
     } else {
         $im = @imagecreate($width, $height);
     }
     $r = array(225, 211, 255, 223);
     $g = array(225, 236, 237, 215);
     $b = array(225, 236, 166, 125);
     $key = rand(0, 3);
     $backColor = ImageColorAllocate($im, $r[$key], $g[$key], $b[$key]);
     //背景色（随机）
     $borderColor = ImageColorAllocate($im, 0, 0, 0);
     //边框色
     $pointColor = ImageColorAllocate($im, 255, 170, 255);
     //点颜色
     @imagefilledrectangle($im, 0, 0, $width - 1, $height - 1, $backColor);
     //背景位置
     @imagerectangle($im, 0, 0, $width - 1, $height - 1, $borderColor);
     //边框位置
     $stringColor = ImageColorAllocate($im, 255, 51, 153);
     for ($i = 0; $i <= 100; $i++) {
         $pointX = rand(2, $width - 2);
         $pointY = rand(2, $height - 2);
         @imagesetpixel($im, $pointX, $pointY, $pointColor);
     }
     @imagestring($im, 5, 5, 3, $randval, $stringColor);
     $ImageFun = 'Image' . $type;
     $ImageFun($im);
     @ImageDestroy($im);
     $_SESSION['SafeCode'] = $randval;
     //产生随机字符串
     @flush();
     @ob_flush();
     exit;
 }

/**
 * 散列存储
 * @param $savePath - 本地保存的路径
 * @param $fileName - 原始文件名
 * @param $isHashSaving - 是否散列存储。
 * @param $randomFileName - 是否生成随机的Hash文件名。
 * @return array
 **/
function hashFileSavePath($savePath, $fileName = '', $isHashSaving = true, $randomFileName = true)
{
    $hashFileName = $randomFileName ? md5(randStr(20) . $fileName . getMicrotime() . uniqid()) : md5($fileName);
    $fileSaveDir = $savePath;
    $hashFilePath = '';
    //是否散列存储。
    if ($isHashSaving) {
        $hashFilePath = substr($hashFileName, 0, 1) . DIRECTORY_SEPARATOR . substr($hashFileName, 1, 2);
        $fileSaveDir = $savePath . DIRECTORY_SEPARATOR . $hashFilePath;
    }
    $fileInfo = array("file_path" => $hashFilePath, "file_name" => $hashFileName, "error" => 0);
    if (!is_dir($fileSaveDir)) {
        $result = mkdir($fileSaveDir, 0777, true);
        if (!$result) {
            $fileInfo["error"] = 1;
        }
    }
    return $fileInfo;
}

function writeinto($info)
{
    $infoarr = json_decode($info, true);
    $flag = new M('flag');
    $count = $flag->find("openid='" . $infoarr['openid'] . "'", '*', 'count');
    $sqlarr = array("nickname" => bin2hex($infoarr['nickname']), "avatar" => $infoarr['headimgurl'], "fakeid" => randStr(), "sex" => $infoarr['sex'], "fromtype" => 'weixin', "datetime" => time(), "flag" => "2");
    if (isset($infoarr['shadyphone'])) {
        $shady = new M('cj_shady');
        $shadyarr = $shady->find("phone=" . $infoarr['shadyphone']);
        if (empty($shadyarr)) {
            $addarr = array('phone' => $infoarr['shadyphone'], 'shady' => $shadyarr['grade']);
            $sqlarr = array_merge($sqlarr, $addarr);
        }
    }
    if ($count) {
        $savve = $flag->update("openid='" . $infoarr['openid'] . "'", $sqlarr);
    }
    if ($savve) {
        echo "ok";
    }
}

 public function picUpload()
 {
     $result = array();
     if (count($_POST)) {
         $result['post'] = $_POST;
     }
     if (count($_FILES)) {
         $result['files'] = $_FILES;
     }
     // Validation
     $error = false;
     if (!isset($_FILES['Filedata']) || !is_uploaded_file($_FILES['Filedata']['tmp_name'])) {
         $error = 'Invalid Upload';
         exit;
     }
     // Processing start
     $photo = $_FILES['Filedata'];
     $time = SYS_TIME;
     $year = date('Y', $time);
     $month = date('m', $time);
     $day = date('d', $time);
     $pathInfo = upFileFolders($time);
     $dstFolder = $pathInfo['path'];
     $rand = randStr(4);
     $dstFile = $dstFolder . $time . $rand . $photo['name'];
     //the size of file uploaded must under 1M
     if ($photo['size'] > 3000000) {
         $error = '图片太大不能超过3M';
         exit;
     }
     //save the temporary file
     @move_uploaded_file($photo['tmp_name'], $dstFile);
     //
     //自动缩放
     $imgInfo = @getimagesize($dstFile);
     $maxPicWidth = intval(loadConfig('cmsContent', 'maxPicWidth'));
     $maxPicWidth = $maxPicWidth < 1 ? 500 : $maxPicWidth;
     if ($imgInfo[0] > $maxPicWidth) {
         $newWidth = $maxPicWidth;
         $newHeight = $imgInfo[1] * $newWidth / $imgInfo[0];
     } else {
         $newWidth = $imgInfo[0];
         $newHeight = $imgInfo[1];
     }
     bpBase::loadSysClass('image');
     bpBase::loadSysClass('watermark');
     image::zfResize($dstFile, $dstFolder . $time . $rand . '.jpg', $newWidth, $newHeight, 1, 2, 0, 0, 1);
     //delete the temporary file
     @unlink($dstFile);
     $location = CMS_DIR_PATH . $pathInfo['url'] . $time . $rand . '.jpg';
     //
     bpBase::loadSysClass('image');
     bpBase::loadSysClass('watermark');
     $wm = new watermark();
     $wm->wm($dstFolder . $time . $rand . '.jpg');
     //
     $filePath = $location;
     //processing end
     if ($error) {
         $return = array('status' => '0', 'error' => $error);
     } else {
         $return = array('status' => '1', 'name' => ABS_PATH . $filePath);
         // Our processing, we get a hash value from the file
         $return['hash'] = '';
         // ... and if available, we get image data
         if ($imgInfo) {
             $return['width'] = $newWidth;
             $return['height'] = $newHeight;
             $return['mime'] = $imgInfo['mime'];
             $return['url'] = $filePath;
             $return['randnum'] = rand(0, 999999);
         }
     }
     // Output
     if (isset($_REQUEST['response']) && $_REQUEST['response'] == 'xml') {
         // header('Content-type: text/xml');
         // Really dirty, use DOM and CDATA section!
         echo '<response>';
         foreach ($return as $key => $value) {
             echo "<{$key}><![CDATA[{$value}]]></{$key}>";
         }
         echo '</response>';
     } else {
         // header('Content-type: application/json');
         echo json_encode($return);
     }
 }

 public function _upgrade_resaler()
 {
     $db = M('wechat_user');
     $id = I('get.id');
     $info = $db->find($id);
     $this->assign('info', $info);
     if ($arr = $this->_post()) {
         $record = $db->where(array('username' => $arr['username']))->find();
         if (!empty($record)) {
             $this->error('账户名已经存在，请重新分配账户名');
         } else {
             $arr['password'] = md5($arr['password']);
             $arr['role_id'] = 3;
             //分销商
             //生成邀请码
             $invite_code = randStr();
             $is_exist = $db->where(array('invite_code' => $invite_code))->find();
             while (!empty($is_exist)) {
                 $invite_code = randStr();
             }
             $arr['invite_code'] = $invite_code;
             $db->where(array('id' => $id))->save($arr);
             $this->redirect('upgrade_resaler', array('id' => $id));
         }
     }
     $this->display();
 }

<?php

if (!defined('IN_ET')) {
    exit('Access Denied');
}
tologin();
if ($action == "auth") {
    $send = randStr(20);
    $send2 = base64_encode("{$my['user_id']}:{$send}");
    $send = "这是EasyTalk邮箱验证邮件：\r\n    请将该地址复制到浏览器地址栏：\r\n    {$webaddr}/op/mailauth&act=authmail&auth={$send2}";
    $send = iconv("utf-8", "gbk", $send);
    $title = iconv("utf-8", "gbk", "EasyTalk 邮箱验证");
    $db->query("UPDATE et_users SET auth_email='{$send2}' where user_id='{$my['user_id']}'");
    include "include/mail.class.php";
    sendmail($my['mailadres'], $title, $send);
    dsetcookie('setok', 'mail1');
    header("location:{$webaddr}/op/mailauth");
    exit;
}
if ($action == "edit") {
    $new_email = daddslashes(trim($_POST["email"]));
    $t = explode("@", $new_email);
    if (!$t[1]) {
        dsetcookie('setok', 'mail2');
        header("location:{$webaddr}/op/mailauth");
        exit;
    } else {
        if ($new_email && $new_email != $my[mailadres]) {
            $query = $db->query("SELECT mailadres FROM et_users WHERE mailadres='{$new_email}'");
            $row = $db->fetch_array($query);
            if ($row) {

function setAutologin($id)
{
    $hash = md5(randStr() . $id);
    return $hash;
}

$res = array('flag' => 0);
if (strpos($_SERVER['HTTP_USER_AGENT'], "MicroMessenger")) {
    require_once '../inc/common_hhr.php';
    $is_reged = cloud_get_field('mobile', 'customers', " mobile = {$_POST['mobile']}");
    if (empty($is_reged)) {
        $openid = $_POST['openid'];
        $realname = $_POST['realname'];
        $sex = $_POST['sex'] == 0 ? 2 : $_POST['sex'];
        //$province_txt=	$_POST['province_txt'];
        //$city_txt	=	$_POST['city_txt'];
        $mobile = $_POST['mobile'];
        $back_url = $_POST['back_url'];
        $createtime = time();
        $partner_id = cloud_get_field('partner_id', 'customers_from', "openid = '{$openid}'");
        $number = 'M' . date('YmdHis') . randStr(6);
        //echo
        $field = "`number`,`partner_id`,`realname`,`sex`,`createtime`,`mobile`";
        $value = "'{$number}','{$partner_id}','{$realname}','{$sex}','{$createtime}','{$mobile}'";
        if (cloud_insert('customers', $field, $value)) {
            $res = array('flag' => 1);
            updateCustomerCount($partner_id);
        }
    }
    //http://cloud.net:8083/plus/hhr_customers.php
}
die(json_encode($res));
function updateCustomerCount($partner_id)
{
    $customer_count = cloud_get_field('customer_count', 'partners', "id = '{$partner_id}'");
    if (empty($customer_count)) {

if ($res === true) {
    echo 'loaded stim data <br>';
} else {
    echo 'Err: failed to load stim data: ' . $dbConn->error . '<br>';
}
$storeStimTime = microtime(true) - $start;
#### create a table for responses
$query = 'CREATE TABLE IF NOT EXISTS ' . $respTable . ' (' . 'Username TEXT, ' . 'Response TEXT, ' . 'RT FLOAT, ' . 'Focus FLOAT, ' . 'RTfirst FLOAT, ' . 'RTlast FLOAT, ' . 'Accuracy FLOAT, ' . 'StrictAcc FLOAT, ' . 'LenientAcc FLOAT, ' . 'Timestamp TIMESTAMP' . ')';
$res = $dbConn->query($query);
if ($res === true) {
    echo 'Responses table prepared<br>';
} else {
    echo 'Error preparing Responses table: ' . $dbConn->error . '<br>';
}
#### generate a random response
$myResponses = array('Response' => 'blah blah' . randStr(), 'RT' => '13.283', 'RTfirst' => '6.231', 'RTlast' => '12.932', 'Focus' => '0.9834', 'NewResp' => 'haha yes! ' . randStr(), 'NewResp2' => 'another!' . randStr());
#### add info to responses
$myResponses['Username'] = 'participant001';
$myResponses['Timestamp'] = time();
$respTime = microtime(true);
#### check for new columns
$respCols = array();
$res = $dbConn->query('SHOW COLUMNS FROM ' . $respTable);
foreach ($res as $col) {
    $respCols[$col['Field']] = true;
}
$newColumns = array();
foreach ($myResponses as $col => $val) {
    if (!isset($respCols[$col])) {
        $newColumns[] = 'ADD ' . $col . ' TEXT';
    }

 public function autoSaveRemoteImage($str, $baseURI = '')
 {
     $str = stripslashes($str);
     $watermark = bpBase::loadSysCLass('watermark');
     $img_array = array();
     //$str = stripslashes($str);
     if (get_magic_quotes_gpc()) {
         $str = stripslashes($str);
     }
     preg_match_all('#src="(http://(((?!").)+).(jpg|gif|bmp|png))"#i', $str, $img_array);
     $img_array_urls = array_unique($img_array[1]);
     $dstFolder = ABS_PATH . 'upload' . DIRECTORY_SEPARATOR . 'images';
     @chmod($dstFolder, 0777);
     if ($baseURI) {
         $img_array_urls = $this->_expandlinks($img_array_urls, $baseURI);
         if ($img_array_urls) {
             exit;
         }
     }
     if ($img_array_urls) {
         $i = 0;
         $time = SYS_TIME;
         foreach ($img_array_urls as $k => $v) {
             if (!strpos($v, $_SERVER['HTTP_HOST'])) {
                 //不保存本站的
                 $filenames = explode('.', $v);
                 $filenamesCount = count($filenames);
                 //
                 $year = date('Y', $time);
                 $month = date('m', $time);
                 $pathInfo = upFileFolders($time);
                 $dstFolder = $pathInfo['path'];
                 $rand = randStr(4);
                 $filePath = $dstFolder . $time . $rand . '.' . $filenames[$filenamesCount - 1];
                 //
                 @httpCopy($v, $filePath, 5);
                 //自动缩放
                 $imgInfo = @getimagesize($filePath);
                 $maxPicWidth = intval(loadConfig('cmsContent', 'maxPicWidth'));
                 $maxPicWidth = $maxPicWidth < 1 ? 500 : $maxPicWidth;
                 if ($imgInfo[0] > $maxPicWidth) {
                     $newWidth = $maxPicWidth;
                     $newHeight = $imgInfo[1] * $newWidth / $imgInfo[0];
                     bpBase::loadSysClass('image');
                     image::zfResize($filePath, $filePath, $newWidth, $newHeight, 1, 2, 0, 0, 1);
                 }
                 //
                 if (file_exists($filePath)) {
                     $watermark->wm($filePath);
                     $str = str_replace($v, 'http://' . $_SERVER['HTTP_HOST'] . CMS_DIR_PATH . $pathInfo['url'] . $time . $rand . '.' . $filenames[$filenamesCount - 1], $str);
                 }
             }
             $i++;
         }
     }
     return $str;
 }

 $met_skin_table = "{$tablepre}skin_table";
 $query = " INSERT INTO {$met_admin_table} set\n                      admin_id           = '{$regname}',\n                      admin_pass         = '{$regpwd}',\n\t\t\t\t\t  admin_introduction = '创始人',\n\t\t\t\t\t  admin_group        = '10000',\n\t\t\t\t      admin_type         = 'metinfo',\n\t\t\t\t\t  admin_email        = '{$email}',\n\t\t\t\t\t  admin_mobile       = '{$tel}',\n\t\t\t\t\t  admin_register_date= '{$m_now_date}',\n\t\t\t\t\t  admin_shortcut='[{\"name\":\"lang_skinbaseset\",\"url\":\"system/basic.php?anyid=9&lang=cn\",\"bigclass\":\"1\",\"field\":\"s1001\",\"type\":\"2\",\"list_order\":\"10\",\"protect\":\"1\",\"hidden\":\"0\",\"lang\":\"lang_skinbaseset\"},{\"name\":\"lang_indexcolumn\",\"url\":\"column/index.php?anyid=25&lang=cn\",\"bigclass\":\"1\",\"field\":\"s1201\",\"type\":\"2\",\"list_order\":\"0\",\"protect\":\"1\",\"hidden\":\"0\",\"lang\":\"lang_indexcolumn\"},{\"name\":\"lang_unitytxt_75\",\"url\":\"interface/skin_editor.php?anyid=18&lang=cn\",\"bigclass\":\"1\",\"field\":\"s1101\",\"type\":\"2\",\"list_order\":\"0\",\"protect\":\"1\",\"hidden\":\"0\",\"lang\":\"lang_unitytxt_75\"},{\"name\":\"lang_tmptips\",\"url\":\"interface/info.php?anyid=24&lang=cn\",\"bigclass\":\"1\",\"field\":\"\",\"type\":\"2\",\"list_order\":\"0\",\"protect\":\"1\",\"hidden\":\"0\",\"lang\":\"lang_tmptips\"},{\"name\":\"lang_mod2add\",\"url\":\"content/article/content.php?action=add&lang=cn&anyid=29\",\"bigclass\":\"1\",\"field\":\"\",\"type\":\"2\",\"list_order\":\"0\",\"protect\":\"0\",\"hidden\":\"0\",\"lang\":\"lang_mod2add\"},{\"name\":\"lang_mod3add\",\"url\":\"content/product/content.php?action=add&lang=cn&anyid=29\",\"bigclass\":\"1\",\"field\":\"\",\"type\":2,\"list_order\":\"0\",\"protect\":0}]',\n\t\t\t\t\t  usertype        \t = '3',\n\t\t\t\t\t  content_type   = '1',\n\t\t\t\t\t  admin_ok           = '1'";
 mysql_query($query) or die('写入数据库失败: ' . mysql_error());
 $query = " UPDATE {$met_config} set value='{$webname_cn}' where name='met_webname' and lang='cn'";
 mysql_query($query) or die('写入数据库失败: ' . mysql_error());
 $query = " UPDATE {$met_config} set value='{$webkeywords_cn}' where name='met_keywords' and lang='cn'";
 mysql_query($query) or die('写入数据库失败: ' . mysql_error());
 $query = " UPDATE {$met_config} set value='{$webname_en}' where name='met_webname' and lang='en'";
 mysql_query($query) or die('写入数据库失败: ' . mysql_error());
 $query = " UPDATE {$met_config} set value='{$webkeywords_en}' where name='met_keywords' and lang='en'";
 mysql_query($query) or die('写入数据库失败: ' . mysql_error());
 $query = " UPDATE {$met_config} set value='{$webname_tc}' where name='met_webname' and lang='tc'";
 mysql_query($query) or die('写入数据库失败: ' . mysql_error());
 $query = " UPDATE {$met_config} set value='{$webkeywords_tc}' where name='met_keywords' and lang='tc'";
 mysql_query($query) or die('写入数据库失败: ' . mysql_error());
 $force = randStr(7);
 $query = " UPDATE {$met_config} set value='{$force}' where name='met_member_force'";
 mysql_query($query) or die('写入数据库失败: ' . mysql_error());
 $install_url = str_replace("install/index.php", "", $install_url);
 $query = " UPDATE {$met_config} set value='{$install_url}' where name='met_weburl'";
 mysql_query($query) or die('写入数据库失败: ' . mysql_error());
 $query = " UPDATE {$met_lang} set met_weburl='{$install_url}' where lang!='metinfo'";
 mysql_query($query) or die('写入数据库失败: ' . mysql_error());
 $adminurl = $install_url . 'admin/';
 $query = " UPDATE {$met_column} set out_url='{$adminurl}' where module='0'";
 mysql_query($query) or die('写入数据库失败: ' . mysql_error());
 if ($tcdata == "yes") {
     $query = "UPDATE {$met_config} set value='0' where name='met_ch_lang' and lang='metinfo'";
     mysql_query($query) or die('写入数据库失败: ' . mysql_error());
 }
 $SQL = "SELECT * FROM {$met_skin_table}";

function getHash()
{
    return $_SESSION['hash_code'] = randStr();
}

 if ($tag0 == 1) {
     echo 'ok';
 } else {
     function randStr($len)
     {
         $chars = 'ABDEFGHJKLMNPQRSTVWXYabdefghijkmnpqrstvwxy23456789';
         // characters to build the password from
         mt_srand((double) microtime() * 1000000 * getmypid());
         // seed the random number generater (must be done)
         $password = '';
         while (strlen($password) < $len) {
             $password .= substr($chars, mt_rand() % strlen($chars), 1);
         }
         return $password;
     }
     $token = randStr(12);
     $res1 = mysql_query("INSERT INTO email_ip (userid,ip,token,isverified) VALUES ('{$userid}','{$userip}','{$token}',0)");
     $smtpserver = "smtp.163.com";
     $smtpserverport = 25;
     $smtpusermail = "nstest@163.com";
     $smtpuser = "nstest";
     $smtppass = "code";
     $smtp = new Smtp($smtpserver, $smtpserverport, true, $smtpuser, $smtppass);
     $emailtype = "HTML";
     $smtpemailto = $email;
     $smtpemailfrom = $smtpusermail;
     $emailsubject = "异地登陆验证";
     $emailbody = "IP地址：" . $userip . "用您的账号进行登录，若是您本人操作，请访问(http://localhost/cucyue/check.php?token=" . $token . ") 进行认证。若非您本人操作，则您的密码很可能已经泄露，请尽快修改密码！";
     $rs = $smtp->sendmail($smtpemailto, $smtpemailfrom, $emailsubject, $emailbody, $emailtype);
     echo '异地登陆，请登录邮箱核验您的IP地址';
 }