PHP Tutorials

Yesterday to determine the user IP source, and then enter the user IP address of the network segment, we first need to IP address and integer conversion function implementation, let me see System Functions Ip2long and Long2ip PHP has built-in

In the recursive Scan folder tree problem, or Glob function of the performance of a bit better, very accurate said. The > Scandir function will be inexplicably scanned two times. File, that is, if there are two files for the minor evil. >.. /b.php

function Do_command ($commandName, $args) { $buffer = ""; if (false = = = ($command = Find_command ($commandName))) return false; if ($fp = @popen ("$command $args", ' R ')) { while (! @feof ($fp)) { $buffer. = @fgets ($fp, 4096); } Return trim

PHP image watermark Add, compress, cut the wrapper class implementation, PHP operation of the image file is mainly to use the GD library extension. When we frequently use PHP to manipulate images, we naturally encapsulate many functions, otherwise

This article describes the PHP four call external file function usage and differences, there is a need to know friends can refer to. There are two ways to refer to a file: Require and include. Two ways to provide different use elasticity. Require

This article introduces the use of TXT and PHP to implement the random advertising display call method, the principle is very simple we put the ad file in the TXT file, when there is user access, we put the TXT file loaded, and then randomly come

/* * Template Paging class, from the easp tutorial of the Database tutorial paging method, is easp pagination of the PHP standalone version * Support dynamic and static paging mode * Easp official website http://easp.lengshi.com/ * Author:

This article to introduce the Curl function library error code description of PHP Curl_errno function, there is a need to know friends do not enter the reference. Background Overview:The game interface is a request operation using the PHP curl

Currently PHP5 has released a third candidate version, and it is estimated that the official version will soon be released. The installation process should not change, the following article will tell Windows2000/xp/2003 (not recommended under

The default script execution time-out in PHP is 30 seconds, if you haven't set it up for 30 seconds and if your script has not finished executing it will time out, let me give you a big explanation of how the PHP script executes the timeout. The

A few questions about PHP4, if you have contact with PHP4 veteran please help to answer, I appreciate First: Does PhP4 support static methods and properties? Second: Does PhP4 have no destructor? If not, how do you solve some of the places where

PHP Tutorial Create HD Thumbnail details how to use 1. Replace Imagecreate and imagecopyresized with Imagecreatetruecolor and imagecopyresampled functions respectively2. Take the third parameter to imagejpeg 100 (example: imagejpeg ($ni, $tofile, 10

In PHP, our function is relatively simple, but may be some friends of innocence function address or reference do not understand, the following small part to introduce in PHP function value and address (citation) introduced, I hope to help you. Use

We would have done it before. ajax+php implementation file upload, so that users do not refresh the page is a dynamic upload of images, improve the user experience, then use the most is using the IFRAME to operate, below I introduce the real Ajax

PHP GD LibraryPHP uses the GD library to generate thumbnails.Code: Header ("CONTENT-TYPE:TEXT/HTML;CHARSET=GBK"); Ini_set ("Date.timezone","Asia/chong"); //Determine if the file is empty if (empty($_files)) { Echo

We often found in the page in a few empty lines, but in the editor to see again, this we know is caused by the BOM (UTF-8), the following small series to share several about the BOM (UTF-8) detection and deletion method. is the HTML code that you

In PHP to add a watermark to the image we need to install the GD library for PHP, here we do not introduce the GD library installation, only to introduce how to use PHP to add text watermark image and add text shadow effect. GD Library, is the PHP

Copy CodeThe code is as follows: File name: base64.php$data = "/9j/4aaqskzjrgabaqaaaqabaad/ 2wceabalda4mchaodq4seratgcgagbywgdejjr0oojm9pdkzoddasfxoqerxrtc4ug1rv19iz2hnpk1xexbkefxlz2mberisgbuylxoal2ncoejjy2njy2njy

This article mainly introduces the SQL injection vulnerability example in PHP, we must pay attention to in the development When developing a Web site, you need to filter the characters passed from the page for security reasons. In general, users can

A simple use of PHP upload image files and then generate a picture of the same scale thumbnail effect, there is a need to learn friends can refer to. The code is as follows Copy Code function _uploadpic ($upfile,