PHP

Create a binary IP library file. I. preface all friends who have done IP address attribution query should have heard of the pure IP Address Library. the pure IP address library query is similar to this: if you only need to search for the user's home

Lossless compression image experience (2 ). The image uploading activities that the user has previously participated in have not undergone lossless compression processing. I want to use a script to process images uploaded in January. However, on the

Php buffer output_buffering usage details. Bufferbuffer is a memory address space. in Linux, the default size is generally 4096 (4 KB), that is, a memory page. It is mainly used between devices with different storage speeds or devices with different

Common methods for obtaining user IP addresses and common security risks (HTTP_X_FORWARDED_FOR ). The analysis process is common and frequently used in some projects to obtain user Ip addresses and record user operation behaviors. Generally, you

Common File operation functions of PHP are classic favorites. The following is my summary of the PHP file operation functions. Of course, this is only part of it. there are many other parts that I have not listed. 1. resolution path: 1. get the file

A simple method makes background logon more secure (adding session verification in php ). This document uses Joomla! The background link is used as an example to explain how to "modify" our background link to make it more secure. Principle: use a

Php exception handling technology, top-level exception processor. Set_exception_handler (My_exception) is the function used to define the top-level exception processor. here, My_expection is a developer-defined exception handling function, which is

PHP Security overview. 1. apacheserver security settings 1. Apache is installed and run by Root when running as a Nobody user. If the ApacheServer process has the Root user privilege I. apache server security settings1. run with a Nobody

PHPParseError: syntaxerror, unexpected $ end. I have written php programs over the past few days. I feel that asp and asp are inferior in many aspects. net, jsp is handy. for example, if the session uses session_start ();, it is not convenient to

Matches the coincidence between the csdn user database and the official user, and filters out overlapping users. Process: 1. the user database obtained from csdn is imported to the local trial editplus. the system prompts that the memory is

Php implements simple ACL. The copy code is as follows: -- ACLTables -- table structure 'aclresources' droptableifexists' aclresources'; CREATETABLEIFNOTEXISTS 'aclresources' ('rsid 'varchar (64) NOTNULL The code is as follows: -- ACL Tables--

Summary of simple PHP functions. PHP concise function topic: species PHP concise function brief: PHP simple clear function syntax suitable for the crowd: interested in open source communities, interested in php, a little time to understand php

PHP and Mysqlweb application development Core Technology Part 1 Basics of Php-1 learn about php. 1.1 The first php copy code is as follows: htmlheadtitleMyFirstPHPProgramtitleheadbody? PhpechoHelloEverybody !;? Bodyhtml appending: phpinfo ()

PHPiconv solves UTF-8 and gb2312 encoding conversion problems. At last, the Emperor did not lose heart, but the answer still found me. The code for copying code on the internet is as follows: $ contenticonv (UTF-8, gb2312, $ content); in fact, the

Differences between php5non-thread-safe and thread-safe. First, literally, None-ThreadSafe is non-thread security, while thread security is not checked during execution. ThreadSafe is thread security, during execution, the Thread is performed

Function set for merging, splitting, and distinguishing php arrays. The merging array has three functions: 1. array_combine () carries two parameter arrays. The value of parameter array 1 serves as the key of the new array, and the value of

Phpmicrotime gets the floating point timestamp. This function has been used for obtaining: Copy the code as follows: functionmicrotime_float () {list ($ usec, $ sec) explode (, microtime (); return (float) $ usec + (float) $ sec);} you can see that

Summary of php methods for obtaining the url file name currently accessed. Recommended functions: first, PHP obtains the URL of the current page: dedecms also uses the Copy code as follows: get the current script URL functionGetCurUrl () {if (!

PHP source code compression tool. Usage: (run on the command line) copy the code as follows: phpcompactor. phpDESTINATION. phpSOURCE. php Download: compactor. php copy the code as follows :#! Usrbinenvphp? Php Usage: (run on the command line) The

PHP + MySQL creates a simple message book. Message display page: the main code for paging and message reply is added compared with the previous example: installindex. php: Copy the code on the program installation page as follows :? Phpif ($ _ GET