Php simple method for counting online users _ php skills

This article mainly introduces php's simple method of counting online users, involving php's reading and writing of text files and related mathematical computation skills, for more information about how to count php online users, see the example in

Php image Operation class, which supports generating thumbnails, adding watermarks, and uploading thumbnails

Php image Operation class, which supports generating thumbnails, adding watermarks, and uploading thumbnails Originimage = "" | $ this-> thumbimage = "") {return 0;} $ this-> get_oriwidthheight (); if ($ this-> origin_width thumb_maxwidth & $

PHP code for forcibly downloading PDF files

PHP code for forcibly downloading PDF files ForceDownload ("includemodownload "); Function forceDownload ($ filename ){ If (false = file_exists ($ filename )){ Return false; } // Http

Send WeChat messages

Message sending Simulate login users to get user groups and send messages Error_reporting (E_ALL ^ E_NOTICE ); // Instructions for use: // Start logging on $ Param = array (); $ Param ['username'] =

PDO database operations

PDO database operations Class HRDB { Protected $ pdo; Protected $ res; Protected $ config; /* Constructor */ Function _ construct ($ config ){ $ This-> Config = $ config; $ This->

Use PHP to implement small site advertisement management (revised version) _ PHP Tutorial

Use PHP to manage small-sized website ads (revised version ). Today, I will follow the examples and find many errors. in order to give the Cainiao brothers a better understanding, I will show you the modified files. The data structure is as follows:

Xinlin tutorial (6) _ PHP Tutorial

Xinglin record (6 ). Registration part: registration Step 1: classregister_step1.phpHTMLHEADmetahttp-equivContent-Typecontenttexthtml; charsetgb2312TITLE class address book-registration step TITLEHEADBOD registration part: Registration Step 1: class/

How to delete folders in PHP _ PHP Tutorial

Explore three methods for deleting folders in PHP. 1. copy the code using recursion: deleteDir ($ dir) {if (rmdir ($ dir) falseis_dir ($ dir) {if ($ dpopendir ($ dir )) {while ($ filereaddir ($ dp ))! False) {if (is_dir ($ fil 1. recursion The code

How to save iis logs across servers _ PHP Tutorial

How to save iis logs across servers. With the extensible php Tutorial feature, the game user log information can be stored remotely. here I call him tlog (to establish a tcpip connection with the file server, of course, udp is the best ), currently,

Php code conversion program code _ PHP Tutorial

Php code conversion program code. Let's take a look at the code of an encoding and conversion program written in php, and convert between gbk and UTF-8. FunctionphpUnescape_no ($ source) {$ decodedStr; $ pos0; $ lenstrlen ($ source); w let's take a

Decoding POP3 emails using PHP (1) _ PHP Tutorial

Use PHP to decode POP3 emails (1 ). A preliminary understanding of the source file of the Mail this article briefly describes the principles of receiving mail and MIME mail through POP3 protocol, and provides two Practical PHP classes for receiving

OutputBuffer (output buffer) function usage _ PHP Tutorial

OutputBuffer (output buffer) functions are useful. In PHP programming, we often encounter some functions that directly generate output, such as passthru (), readfile (), and var_dump. but sometimes we want to import the output of these functions

PHP has been released when MSSQL has been released when PHP has been released |

In PHP, please refer to the following link for more information ︽ when there are too many threads, too many threads, such as [php] if (function_exists (mssql_connect )) {echo Success? Please refer to the following link for more information: debate [

Php consultation file lock: flock_PHP tutorial

Php consultation file lock: flock. Recently, I encountered a problem because I was working on php. I used the following code to lock a file handle [php]? Php?filenametmplock.txt; $ fpfopen ($ filename, r +); if I encountered a problem recently due

Common PHPExcel methods-PHP Tutorial

Common PHPExcel methods .? Set includepathset_include_path (.. PATH_SEPARATOR.D: ZealPHP_LIBS.PATH_SEPARATOR.get_include_path (); ** www.2cto.com * of the PHPExcel class library as an example. // Set the include path of the PHPExcel class

Why does php5 + php-frm + libevent + memcached parse. php?

Php5 + php-frm + libevent + memcached why can this environment be parsed. php does not have apache or nginx, and the php file depends on what runs in the browser .... is it php-fpm? ------ Solution -------------------- what system? How do you know?

How does thinkphp inherit its own Action?

How does thinkphp inherit its own ActionGlobalAction. class. phpPHPcodeclassGlobalActionextendsAction {publicfunction_initialize () {}} IndexAction. class. phpPHPcodeclassIndexActio thinkphp inherit its own Action? GlobalAction. class. php

How to deal with the PHP5 Chinese manual with a purity of 100%

The PHP5 Chinese manual, whose purity is 100%, has nearly 100 online manuals, which are Chinese manuals. However, the directories are all in English, and there are 100% Chinese manuals, I only want to explain the function in Chinese. do not read

How does PHP obtain a line of data with a carriage return when reading a large file. How can this problem be solved?

How does PHP obtain a line of data with a carriage return when reading a large file. When PHP reads a large file, how does one get a line of data with a carriage return character .?? ------ Solution -------------------- what are you talking about? --

How to deal with the Xinxin domain name query interface program (urgent)

After the Xinnet domain name query interface program (urgent) changes the interface address of the Xinnet, I cannot query the domain name now. please help me ~~~!!! The Xinnet domain name query api interface program is grateful! ------ Solution -----

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