大文件读取类
class
file
lib
php
operate
document
read
文件操作类 无 ?php class Lib_File2{//文件目录private $root = '/data/wwwroot/kkpromo/data/';//文件后缀private $suffix = '.log';//文件句柄private $handle=null;//一次读取文件的最大记录数private $limit=40000;//每行读取的字节长度private $length=
文件操作类
<?php
class Lib_File2
{
//文件目录
private $root = '/data/wwwroot/kkpromo/data/';
//文件后缀
private $suffix = '.log';
//文件句柄
private $handle=null;
//一次读取文件的最大记录数
private $limit=40000;
//每行读取的字节长度
private $length=1024;
//开始时间
private $startTime=0;
//内存使用基准点
private static $startMemory=0;
//
private $conn=null;
//
private static $init=null;
public static function instance()
{
self::$startMemory = memory_get_usage(true);
if(self::$init && is_object(self::$init))
{
return self::$init;
}
self::$init = new self();
return self::$init;
}
private function __construct(){}
public function setRoot($root)
{
if(!is_dir($root)) die($root.' ROOT DOES NOT EXIST');
$this->root = $root;
}
public function setSuffix($suffix)
{
$this->suffix = $suffix;
}
public function setLimit($limit)
{
if(!is_numeric($limit)) die($limit.' SHOULD BE NUMBERIC');
if(intval($limit) > 1000000) die($limit.' SHOULD BE LOWER THAN 1000000');
$this->limit = intval($limit);
}
public function _getFile($date , $appid , $op)
{
$filename = rtrim($this->root , '/').DIRECTORY_SEPARATOR.$date.DIRECTORY_SEPARATOR.$appid.'.'.$op.$this->suffix;
if(!file_exists($filename))
{
die($filename.' FILE DOES NOT EXISTS!');
}
if(!is_file($filename))
{
die($filename.' FILE DOES NOT EXIST!');
}
if(!is_readable($filename))
{
die($filename.' FILE ACCESS DENY!');
}
return $filename;
}
public function closeFile($date=null , $appid=null , $op=null)
{
if($op && $date && $appid)
{
if(is_object($this->handle[$date.'_'.$appid.'_'.$op]) || $this->conn[$date.'_'.$appid.'_'.$op])
{
unset($this->handle[$date.'_'.$appid.'_'.$op]);
$this->handle[$date.'_'.$appid.'_'.$op]=null;
}
$this->conn[$date.'_'.$appid.'_'.$op]=null;
$this->handle[$date.'_'.$appid.'_'.$op]=null;
unset($this->handle[$date.'_'.$appid.'_'.$op]);
}
else {
if(is_array($this->handle) && $this->handle)
{
foreach ($this->handle as $key=>$val){
unset($this->handle[$key]);
$this->conn[$key]=null;
$this->handle[$key]=null;
}
}
}
return true;
}
private function _openFile($date , $appid , $op)
{
$this->startTime = microtime(true);
if(isset($this->conn[$date.'_'.$appid.'_'.$op]) && $this->conn[$date.'_'.$appid.'_'.$op])
{
return $this->handle[$date.'_'.$appid.'_'.$op];
}
$filename = self::_getFile($date , $appid , $op);
if(($this->handle[$date.'_'.$appid.'_'.$op] = new SplFileObject($filename , 'r'))!=null)
{
$this->conn[$date.'_'.$appid.'_'.$op] = true;
return $this->handle[$date.'_'.$appid.'_'.$op];
}
else {
die('FILE OPEN FAILED!');
}
}
/**
* 功能：解析数据
* 格式： array('timestamp','mid','data');
* @param string $data
* @return boolean|array
*/
private function _parseData($data , $jsonFlag=true)
{
if(empty($data) || !is_string($data)) return false;
$result = array(
'timestamp'=>0,
'mid'=>0,
'data'=>array(),
);
$data = explode('|', $data);
if(count($data) < 3 || !is_array($data)) return false;
$result['timestamp'] = $data[0];
$result['mid'] = $data[1];
if($jsonFlag)
{
$result['data'] = @json_decode($data[2] , true);
unset($result['mid']);
}
if(empty($result['timestamp']) || empty($result['mid'])) return false;
unset($data);
return $result;
}
/**
* TODO:读取单一文件
* @param string $date： 如（20140327）
* @param int $appid: 如（1000,9000）
* @param string $op：如(show，login , index)
* @param number $startNum 默认从第一行开始
* @param number $length 默认到$this->limit 读取的行数
* @param array $condition:array('mid'=>arrray() , 'ip'=>array() , ...) 过滤条件
* @param bool $jsonFlag：默认为true， 则保留jsondata字段；设为false，则去掉false字段
* @return array(count , diffTime , memory , data)
*/
public function readFile($date , $appid , $op , $startNum=0 , $length=0 , $jsonFlag=false , $condition=array())
{
$data['data'] = "";
$data['count'] = 0;
$index = $startNum;
$startNum = empty($startNum) ? 0 : $startNum;
$length = empty($length) ? $this->limit : $length;
$handle = self::_openFile($date , $appid , $op );
$line_number=0;
if($handle)
{
$handle->seek($startNum);
$handle->setMaxLineLen($this->length);
while (intval($line_number) - intval($startNum) < intval($length)-1)
{
$tmp = $handle->current();
if(empty($tmp)) continue;
$tmp = self::_parseData($tmp , $jsonFlag);
$line_number = $handle->key();
!$jsonFlag && $condition= array();
if(isset($condition) && $condition)
{
$key = array_keys($condition);
if(in_array($tmp['data'][$key[0]], $condition[$key[0]]))
{
$data['count']++;
$data['data'][$line_number] = $tmp;
}
}
else
{
$data['data'][$line_number] = $tmp;
$data['count']++;
}
if(intval($line_number) - intval($startNum) >= intval($length)-1) break;
unset($tmp);
$handle->next();
}
unset($tmp , $length , $line_number , $condition);
}
$data['diffTime'] = doubleval(microtime(true)) - doubleval($this->startTime);
$data['memory'] = doubleval((doubleval(memory_get_usage(true)) - doubleval(self::$startMemory))/1024/1024) . ' M';
return $data;
}
/**
* TODO:命令行下获取文件总记录数*
* @param string $date
* @param int $appid
* @param string $op
* @return array
*/
public function total_lineFile($date, $appid, $op)
{
$this->_openFile($date, $appid, $op);
$file = escapeshellarg($this->_getFile($date, $appid, $op)); // 对命令行参数进行安全转义
$line = `wc -l $file`;
if(preg_match("/(\d{1,})/", $line , $ret)){
$data['count']=$ret[1];
}else{
$data['count']=0;
}
$data['diffTime'] = doubleval(microtime(true)) - doubleval($this->startTime);
$data['memory'] = doubleval((doubleval(memory_get_usage(true)) - doubleval(self::$startMemory))/1024/1024) . ' M';
return $data;
}
/**
* TODO:统计{$data}.{$op}.log记录数
* @param string $date
* @param int $appid
* @param string $op
* @param array $condition
* @return array
*/
public function countFile($date , $appid , $op ,$condition=array())
{
$data['count'] = 0;
$handle = self::_openFile($date , $appid , $op );
if($handle)
{
$handle->setMaxLineLen($this->length);
while (!$handle->eof())
{
$tmp = $handle->current();
if(empty($tmp)) continue;
$tmp = self::_parseData($tmp);
if($condition && is_array($condition) )
{
$key = array_keys($condition);
if(isset($tmp['data'][$key[0]]) && $tmp['data'][$key[0]] && in_array($tmp['data'][$key[0]], $condition[$key[0]]))
{
$data['count']++;
}
}
else
{
$data['count']++;
}
unset($tmp);
$handle->next();
}
}
unset($handle , $condition , $tmp , $key , $val);
self::closeFile($date , $appid , $op );
$data['diffTime'] = doubleval(microtime(true)) - doubleval($this->startTime);
$data['memory'] = doubleval((doubleval(memory_get_usage(true)) - doubleval(self::$startMemory))/1024/1024) . ' M';
return $data;
}
/**
* TODO:统计用户数
* @param string $date
* @param int $appid
* @param string $op
* @param bool $midflag ：默认为false 则 mid返回空数组；如设为true，则mid数组不为空
* * @param bool $jsonFlag：默认为true， 则保留jsondata字段；设为false，则去掉jsondata字段
* @param array $condition
* @return : array：形如（{"mid":[],"count":2181,"diffTime":0.0397667884827,"memory":"3.75 M"}）
*/
public function countFileMID($date , $appid , $op , $midflag=false , $jsonFlag=false, $condition=array())
{
//$count = self::total_lineFile($date , $appid , $op );
$count = self::countFile($date , $appid , $op );
$index = ceil($count['count'] / $this->limit);
$result = array('mid'=>array() , 'count'=>0 , 'diffTime'=>0 , 'memory'=>0);
for ($i=0 ; $i<$index ; $i++)
{
$startNum = $this->limit*$i;
$endNum = $this->limit;
$data = self::readFile($date , $appid , $op , $startNum , $endNum , $jsonFlag);
var_dump($data);exit();
if($data['data'] && is_array($data['data']))
{
foreach ($data['data'] as $arr)
{
if($condition && is_array($condition))
{
$key = array_keys($condition);
if(isset($arr['data'][$key[0]]) && (in_array($arr['data'][$key[0]] , $condition[$key]) || empty($condition[$key[0]])))
{
$result['mid'][$arr["mid"]] =1;
$result['count']++;
}
}
else
{
$result['mid'][$arr["mid"]] =1;
$result['count']++;
}
unset($data);
}
}
}
unset($index , $count , $condition , $data , $arr);
self::closeFile($date , $appid , $op);
$result['mid'] = array_keys($result['mid']);
if(empty($midflag)) unset($result['mid']);
$result['diffTime'] = doubleval(microtime(true)) - doubleval($this->startTime);
$result['memory'] = (memory_get_usage(true) - self::$startMemory)/1024/1024 . ' M';
return $result;
}
/**
* TODO:跨时间段 统计参加$op用户数据
* @param string $date
* @param int $appid
* @param string $op
* @param number $day
* @param bool $midflag ：默认为false 则 mid返回空数组；如设为true，则mid数组不为空
* @return array 形如（"20140326":{"mid":[],"count":4571,"diffTime":0.0806441307068,"memory":"3.75 M"},
* "20140325":{"mid":[],"count":2181,"diffTime":0.0397667884827,"memory":"3.75 M"}）
*/
public function getReturnUser($date , $appid , $op , $day=1 , $midflag=false)
{
$date_i=0;
for ($i =0; $i<$day ; $i++){
$date_i = date('Ymd' , strtotime($date)-$i*86400);
$result[$date_i] = self::countFileMID($date_i , $appid , $op , $midflag);
}
unset($date , $date_i , $appid , $op , $day);
return $result;
}
}
?>Copy after login
<?php
class Lib_File1
{
//文件目录
private $root = '/data/wwwroot/kkpromo/data/';
//文件后缀
private $suffix = '.log';
//文件句柄
private $hander=null;
//一次读取文件的最大记录数
private $limit=40000;
//每行读取的字节长度
private $length=1024;
//开始时间
private $startTime=0;
//内存使用基准点
private static $startMemory=0;
//
private $conn=null;
//
private static $init=null;
public static function instance()
{
self::$startMemory = memory_get_usage(true);
if(self::$init && is_object(self::$init))
{
return self::$init;
}
self::$init = new self();
return self::$init;
}
private function __construct(){}
public function setRoot($root)
{
if(!is_dir($root)) die($root.' ROOT DOES NOT EXIST');
$this->root = $root;
}
public function setSuffix($suffix)
{
$this->suffix = $suffix;
}
public function setLimit($limit)
{
if(!is_numeric($limit)) die($limit.' SHOULD BE NUMBERIC');
if(intval($limit) > 1000000) die($limit.' SHOULD BE LOWER THAN 1000000');
$this->limit = intval($limit);
}
private function _getFile($date , $appid , $op)
{
$filename = rtrim($this->root , '/').DIRECTORY_SEPARATOR.$date.DIRECTORY_SEPARATOR.$appid.'.'.$op.$this->suffix;
if(!file_exists($filename))
{
die($filename.' FILE DOES NOT EXISTS!');
}
if(!is_file($filename))
{
die($filename.' FILE DOES NOT EXIST!');
}
if(!is_readable($filename))
{
die($filename.' FILE ACCESS DENY!');
}
return $filename;
}
public function closeFile($date=null , $appid=null , $op=null)
{
if($op && $date && $appid)
{
if(is_object($this->hander[$date.'_'.$appid.'_'.$op]) || $this->conn[$date.'_'.$appid.'_'.$op])
{
fclose($this->hander[$date.'_'.$appid.'_'.$op]);
}
$this->conn[$date.'_'.$appid.'_'.$op]=null;
$this->hander[$date.'_'.$appid.'_'.$op]=null;
}
else {
if(is_array($this->hander) && $this->hander)
{
foreach ($this->hander as $key=>$val){
fclose($this->hander[$key]);
$this->conn[$key]=null;
$this->hander[$key]=null;
}
}
}
return true;
}
private function _openFile($date , $appid , $op)
{
$this->startTime = microtime(true);
if(isset($this->conn[$date.'_'.$appid.'_'.$op]) && $this->conn[$date.'_'.$appid.'_'.$op])
{
return $this->hander[$date.'_'.$appid.'_'.$op];
}
$filename = self::_getFile($date , $appid , $op);
if(($this->hander[$date.'_'.$appid.'_'.$op] = fopen($filename, 'r'))!=null)
{
$this->conn[$date.'_'.$appid.'_'.$op] = true;
return $this->hander[$date.'_'.$appid.'_'.$op];
}
else {
die('FILE OPEN FAILED!');
}
}
/**
* 功能：解析数据
* 格式： array('timestamp','mid','data');
* @param string $data
* @return boolean|array
*/
private function _parseData($data)
{
if(empty($data) || !is_string($data)) return false;
$result = array(
'timestamp'=>0,
'mid'=>0,
'data'=>array(),
);
$data = explode('|', $data);
if(count($data) < 3 || !is_array($data)) return false;
$result['timestamp'] = $data[0];
$result['mid'] = $data[1];
$result['data'] = @json_decode($data[2] , true);
if(empty($result['timestamp']) || empty($result['mid'])) return false;
unset($data);
return $result;
}
/**
* TODO:读取单一文件
* @param string $date： 如（20140327）
* @param int $appid: 如（1000,9000）
* @param string $op：如(show，login , index)
* @param number $startNum 默认从第一行开始
* @param number $endNum 默认到$this->limit结束
* @param array $condition:array('mid'=>arrray() , 'ip'=>array() , ...) 过滤条件
* @param bool $jsonFlag：默认为true， 则保留jsondata字段；设为false，则去掉false字段
* @return array(count , diffTime , memory , data)
*/
public function readFile($date , $appid , $op ,$startNum=0 , $endNum=0 , $jsonFlag=false , $condition=array())
{
$data['data'] = "";
$data['count'] = 0;
$index = $startNum;
$startNum = empty($startNum) ? 0 : $startNum;
$endNum = empty($endNum) ? $this->limit : $endNum;
$hander = self::_openFile($date , $appid , $op );
$tmpindex=0;
if($hander)
{
//!feof($hander)
while ($tmpindex < $endNum)
{
$tmp = fgets($hander , $this->length);
if(empty($tmp)) continue;
if($tmpindex < $endNum && $tmpindex >=$startNum)
{
$tmp = self::_parseData($tmp);
if(empty($tmp)) continue;
//去掉jsondata
if(!$jsonFlag) { unset($tmp[2]); $condition= array(); }
//条件过滤
if($condition && is_array($condition) )
{
foreach ($condition as $key=>$val){
if(in_array($tmp['data'][$key], $condition[$key]))
unset($key , $val);
$data['count']++;
$data['data'][$index] = $tmp;
$index++;
}
}
else{
$data['data'][$index] = $tmp;
$index++;
$data['count']++;
}
}
if($tmpindex >= $endNum) break;
$tmpindex++;
unset($tmp);
}
fseek($hander , SEEK_END);
}
$data['diffTime'] = doubleval(microtime(true)) - doubleval($this->startTime);
$data['memory'] = doubleval((doubleval(memory_get_usage(true)) - doubleval(self::$startMemory))/1024/1024) . ' M';
return $data;
}
/**
* TODO:命令行下获取文件总记录数*
* @param string $date
* @param int $appid
* @param string $op
* @return array
*/
public function total_lineFile($date, $appid, $op)
{
$this->_openFile($date, $appid, $op);
$file = escapeshellarg($this->_getFile($date, $appid, $op)); // 对命令行参数进行安全转义
$line = `wc -l $file`;
if(preg_match("/(\d{1,})/", $line , $ret)){
$data['count']=$ret[1];
}else{
$data['count']=0;
}
$data['diffTime'] = doubleval(microtime(true)) - doubleval($this->startTime);
$data['memory'] = doubleval((doubleval(memory_get_usage(true)) - doubleval(self::$startMemory))/1024/1024) . ' M';
return $data;
}
/**
* TODO:统计{$data}.{$op}.log记录数
* @param string $date
* @param int $appid
* @param string $op
* @param array $condition
* @return array
*/
public function countFile($date , $appid , $op ,$condition=array())
{
$data['count'] = 0;
$hander = self::_openFile($date , $appid , $op );
if($hander)
{
while (!feof($hander))
{
$tmp = fgets($hander , $this->length);
$tmp = self::_parseData($tmp);
if(empty($tmp)) continue;
if($condition && is_array($condition) )
{
foreach ($condition as $key=>$val){
if(isset($tmp['data'][$key]) && $tmp['data'][$key] && in_array($tmp['data'][$key], $condition[$key])){
unset($key , $val);
$data['count']++;
}
}
}
else
$data['count']++;
unset($tmp);
}
fseek($hander , SEEK_END);
}
$data['diffTime'] = doubleval(microtime(true)) - doubleval($this->startTime);
$data['memory'] = doubleval((doubleval(memory_get_usage(true)) - doubleval(self::$startMemory))/1024/1024) . ' M';
return $data;
}
/**
* TODO:统计用户数
* @param string $date
* @param int $appid
* @param string $op
* @param bool $midflag ：默认为false 则 mid返回空数组；如设为true，则mid数组不为空
* * @param bool $jsonFlag：默认为true， 则保留jsondata字段；设为false，则去掉jsondata字段
* @param array $condition
* @return : array：形如（{"mid":[],"count":2181,"diffTime":0.0397667884827,"memory":"3.75 M"}）
*/
public function countFileMID($date , $appid , $op , $midflag=false , $jsonFlag=false, $condition=array())
{
$count = self::total_lineFile($date , $appid , $op );
$index = ceil($count['count'] / $this->limit);
$result = array('mid'=>array() , 'count'=>0 , 'diffTime'=>0 , 'memory'=>0);
for ($i=0 ; $i<$index ; $i++)
{
$startNum = $this->limit*$i;
$endNum = $this->limit*($i+1);
$data = self::readFile($date , $appid , $op , $startNum , $endNum , $jsonFlag);
if($data['data'] && is_array($data['data']))
{
foreach ($data['data'] as $arr)
{
if($condition && is_array($condition)){
foreach ($condition as $key=>$val){
if(isset($arr['data'][$key]) && (in_array($arr['data'][$key] , $condition[$key]) || empty($condition[$key]))){
if(!isset($result['mid'][$arr['mid']])) { $result['mid'][$arr["mid"]] =1; $result['count']++; }
}
}
}
else {
if(!isset($result['mid'][$arr['mid']])) { $result['mid'][$arr["mid"]] =1; $result['count']++; }
}
}
}
unset($data['data'] , $data);
}
unset($index , $count , $condition , $data , $arr);
self::closeFile($date , $appid , $op);
$result['mid'] = array_keys($result['mid']);
//$result['count'] = count($result['mid']);
if(empty($midflag)) unset($result['mid']);
$result['diffTime'] = doubleval(microtime(true)) - doubleval($this->startTime);
$result['memory'] = (memory_get_usage(true) - self::$startMemory)/1024/1024 . ' M';
return $result;
}
/**
* TODO:跨时间段 统计参加$op用户数据
* @param string $date
* @param int $appid
* @param string $op
* @param number $day
* @param bool $midflag ：默认为false 则 mid返回空数组；如设为true，则mid数组不为空
* @return array 形如（"20140326":{"mid":[],"count":4571,"diffTime":0.0806441307068,"memory":"3.75 M"},
* "20140325":{"mid":[],"count":2181,"diffTime":0.0397667884827,"memory":"3.75 M"}）
*/
public function getReturnUser($date , $appid , $op , $day=1 , $midflag=false)
{
$date_i=0;
for ($i =0; $i<$day ; $i++){
$date_i = date('Ymd' , strtotime($date)-$i*86400);
$result[$date_i] = self::countFileMID($date_i , $appid , $op , $midflag);
}
unset($date , $date_i , $appid , $op , $day);
return $result;
}
}
?>Copy after login
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PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian
Dec 24, 2024 pm 04:42 PM
PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati
Discuss CakePHP
Sep 10, 2024 pm 05:28 PM
CakePHP is an open-source framework for PHP. It is intended to make developing, deploying and maintaining applications much easier. CakePHP is based on a MVC-like architecture that is both powerful and easy to grasp. Models, Views, and Controllers gu
How To Set Up Visual Studio Code (VS Code) for PHP Development
Dec 20, 2024 am 11:31 AM
Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c
CakePHP Quick Guide
Sep 10, 2024 pm 05:27 PM
CakePHP is an open source MVC framework. It makes developing, deploying and maintaining applications much easier. CakePHP has a number of libraries to reduce the overload of most common tasks.
How do you parse and process HTML/XML in PHP?
Feb 07, 2025 am 11:57 AM
This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an
PHP Program to Count Vowels in a String
Feb 07, 2025 pm 12:12 PM
A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total
Explain JSON Web Tokens (JWT) and their use case in PHP APIs.
Apr 05, 2025 am 12:04 AM
JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,
7 PHP Functions I Regret I Didn't Know Before
Nov 13, 2024 am 09:42 AM
If you are an experienced PHP developer, you might have the feeling that you’ve been there and done that already.You have developed a significant number of applications, debugged millions of lines of code, and tweaked a bunch of scripts to achieve op
