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 $time;
}
读取文件内容
public static function file_read($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 $str;
} else {
return false;
}
}
产生随机字符串
public static function get_nonce_number($length = 11)
{
$chars = "0123456789";
$str = "";
for ($i = 0; $i < $length; $i++) {
$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
}
return $str;
}
生成订单号
public static function get_order_id($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 $orderId;
}
随机产生字母和数字
public static function randomkeys($length)
{
$returnStr = '';
$pattern = '1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLOMNOPQRSTUVWXYZ';
for ($i = 0; $i < $length; $i++) {
$returnStr .= $pattern{mt_rand(0, 61)}; //生成php随机数
}
return $returnStr;
}
生成6位数验证码
public static function random_code($length = 6)
{
$code = rand(pow(10, ($length - 1)), pow(10, $length) - 1);
return "$code";
}
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 $str;
}
接收post或者get参数
public static function get_input($name)
{
$request = Yii::$app->request;
if (isset($_GET[$name])) {
$value = $request->get($name);
} elseif (isset($_POST[$name])) {
$value = $request->post($name);
} else {
$value = '';
}
return $value;
}
加密方法
public static function aes_encrypt($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($encrypted);
}
解密方法
public static function aes_decrypt($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 $decrypted;
}
curl模拟带header头信息的get请求
public static function curl_get($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 $data;
}
curl模拟带header头信息的post方法
public static function curl_post($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 $data;
}
远程下载图片到本地
public static function downloadImage($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);
}
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 $url;
}
调试日志记录
public static function debug_log($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);
}
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;
}
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 $this_week;
}
yii2分页
public static function page_info($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;
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