PHP

Some small things may be useful sometimes!1. Obtain the Client IP address.Function getip (){If (! Empty ($ _ SERVER ["HTTP_X_FORWARDED_FOR"]) {// proxy usage$ Tip = split (",", $ _ SERVER ["HTTP_X_FORWARDED_FOR"]);$ Cip = $ tip [0];}Else$ Cip = $ _

Function CreateShtml (){Ob_start (array ("callback_CreateShtml", "callback_GoToShtml "));}Function callback_CreateShtml ($ buffer )[{$ Page = intval (@ $ _ REQUEST ["page"]);$ FileName = $ _ SERVER ['document _ root']. dirname ($ _ SERVER ['php _

The method is as follows:Because users are added, the user you run the PHP program must be Administrator and your php. the security mode in ini is not enabled, and the system (), exec (), passthru (), and other functions are not disabled in the

In PHP, file upload is generally implemented through move_uploaded_file.Bool move_uploaded_file (string filename, string destination) This function checks and ensures that the file specified by filename is a valid Upload File (that is, the File

MySQL exampleThe most common database in PHP is MySQL, so I think you will like the following program code. It is linked to the MySQL server of localhost. The database name is mydab and runs a SQL select command query, the query results are printed

1. You can install the Personal Web Server from add-ons \ pws \ setup.exe on the Windows 98 installation disk,Select the typical installation directory C: \ Inetpub \ wwwroot;2. Software

PHP variable to Javascript variable:Copy codeThe Code is as follows: Form variable to Javascript variable:Copy codeThe Code is as follows: PHP variable to Form variable:Copy codeThe Code is as follows: "> // PHP code inside HTML !! Javascript

1. Com link, ADODB. ConnectionCopy codeThe Code is as follows:$ Conn = new Com ("ADODB. Connection"); // instantiate a Connection object$ Connstr = "provider = sqloledb; datasource =.; uid = sa; pwd = 123456; database = jnold ;";$ Conn-> Open ($

VBulletin HACK---- Display the topic size and open a new window on the Forum index pageBy gogosoftShow topic sizeCause: this feature is not available in version 1.1.4, and some users use this feature as a reference for viewing topics.Advantage: you

Question: Use php4 to accelerate network transmission./***************************************** Title ......: PHP4 HTTP Compression Speeds up the Web** Version ......: 1.10** Author ......: catoc ** Filename...: gzdoc. php** Last changed...: 25/08/2

I found many methods in the network speed, and finally solved the problem.In fact, the simplest way is to add a tag to the header.You can also use Program ControlCopy codeThe Code is as follows:Header ("Cache-control: no-cache, no-store,

1. First, make sure that your PHP version is no lower than 5.1.4. However, we strongly recommend that you use 5.2.3 or later. 2. Make sure that the following modules are enabled for your php. ini: Extension = php_pdo.dllExtension =

Copy codeThe Code is as follows:/** Function: similar to substr, it does not cause garbled characters.* Parameters:* Return value:*/Function utf8_substr ($ str, $ start, $ length = null ){// The screenshot is intercepted normally first.$ Res =

Stage: Zend Studio 8.0 Zend Studio is the preferred development tool for PHP developers. It is equivalent to Visual Studio in Microsoft development tools. The Zend Studio editor can help us identify syntax errors and warnings, but too many warnings

_ Autoload usage Method 1: This method is most often used. Find the class file based on the class name, and then require_oneCopy codeThe Code is as follows:Function _ autoload ($ class_name ){$ Path = str_replace ('_', '/', $ class_name

Copy codeThe Code is as follows:// #### Splitting strings ####Function jb51netcut ($ start, $ end, $ file ){$ Content = explode ($ start, $ file );$ Content = explode ($ end, $ content [1]);Return $ content [0];}?>Explode definition and usage The

You can see a question on the Internet: The result of array ("a") + array ("B") is ___ A. array ("a", "B ")B. array ("B", "")C. array ("B ")D. array ("") Answer: D Why does the result remain unchanged when the php arrays are added? Because they are

Normal mysql connections will certainly be discarded because every time SQL injection is prevented, it is relatively slow.Mysqli is an optimization made on the basis of common mysql. To be honest, the preprocessing method is successful, which

The following describes the source code and simple test of the two versions of functions. At last, I will provide a more practical string truncation function. Note: The string truncation issues discussed here are all Chinese strings for UTF-8

1. You can add restrictions in SQL statements: left (text, 20) only takes the first 20 words of text;2. limit fromRecord and RecordNum can be used as pages. For example, limit indicates that 30 records are traversed from the first record;3. join two