PHP

Substr () function Chinese version. Substr () function Chinese normal substr () function can obtain the specified length of the string, but in case of Chinese, garbled characters may be generated at the end of the new string, the following function

PHP class. Before explaining the concept of classes in PHP, let's talk about the concept of object-oriented programming: Object-oriented programming (Object-OrientedProgramming, short as OOP) the idea is to create a software-heavy PHP class. before

Use the PHP function to solve SQLinjection. The SQLinjection problem is very popular in ASP. of course, there are still many well-known PHP programs at home and abroad "killed ". As for SQLinjection details, there are too many articles on the

Real object-oriented programming: PHP5.01 released. PHP is a simple and practical dynamic Web programming language. The latest version is 5.01. its help includes the latest UNIX and Windows installation documents for beginners to use! The latest

PHP file system examples. PHP has many functions related to the file system. these functions can not only open files, but also display contents in directories, move files, and other functions, many people even use PHP to open PHP with many file

How to install PHP in the dynamic shared object mode. PHP is usually installed on the LinuxUnix operating system and used together with the Apache server. When installing PHP with the Apache server, you have three different installation methods: PHP

Improve PHP execution speed (I ). One of the advantages of PHP is that it is fast. it is enough for general website applications. However, if the site traffic is high, bandwidth is narrow, or other factors make the server generate PHP, one of the

PHP and HTML. PHP and HTMLPHP can interwork with HTML: PHP can generate HTML, while HTML can transmit information to PHP.1. how can I encode and decode the values when using a formURL? 2. I am using PHP and HTML can interoperate: PHP can generate

Php file size limit configuration method before uploading This article introduces how to restrict the file size before uploading a file in php. For more information, see.In php programming, when it comes to file upload, you are always

Php file operations $ Path1 = "F:/www/jbxue.txt "; If (! File_exists ($ path1 )){ Echo "the file does not exist! "; } Else { $ Handle1 = fopen ($ path1, 'R + ') or exit ("Unable to open file ");

Php detects the custom class of the file type through the file header /* Obtain the file type by file name * * @ Author chengmo * * @ Version 0.1 * $ Filename = "d:/1.png"; echo cFileTypeCheck:

In php, ob_get_contents (); ob_end_clean (); ob_start (); usage details This article describes how to use the ob_get_contents (), ob_end_clean (), and ob_start () functions in php. For more information, see.Php Cache related functions:

Mysql problem: Toomanyconnections solution [Mysqld] Port = 3306 Socket =/tmp/mysql. sock Skip-locking Key_buffer = 160 M Max_allowed_packet = 1 M Table_cache = 64 Sort_buffer_

Simple phpcurlpost example // Curl post example $ Url = 'http: // bbs.it-home.org '; $ Param1 = "param1"; // parameter 1 $ Param2 = "param2"; // parameter 2 $ Param3 = "param3"; //

A simple php file download function Php file download _ bbs.it-home.org Set_time_limit (24*60*60 ); If (! Isset ($ _ POST ['submit ']) die ();

Php regular expressions If (preg_match ("/^ \ d * $/", $ fgid) echo ('number '); Else echo ('not a digit'); or use the function [code] if (is_numeric ($ fgid) echo ('is a digit '); Else echo ('not a digit ');

Example of using php scheduled task ignore_user_abort // Php scheduled task // By bbs.it-home.org Ignore_user_abort (); // whether the script execution is terminated when the function is set to be

Application example of krsort and asort functions in php array sorting $ My_array = array ("a" => "Dog", "B" => "Cat", "c" => "Horse "); Krsort ($ my_array ); Print_r ($ my_array ); ?> Output:

Example of how to decompress a file or string using gzip in php /** * Php custom gzdecode decompress the gzip file * Edit bbs.it-home.org */ If (! Function_exists ('gzdemo ')){ Function

Php implements code for uploading and downloading files File upload/download -bbs.it-home.org $ Dir = 'upload /';} If (is_dir ($ dir )){