content type image jpeg

PHP combined with JQueryJcrop to implement the code of the Avatar image cropping instance, I found some websites have the image cutting function, and it was quite dazzling. Later I found a plug-in dedicated to image cropping, jquery. jcrop. min. js.

Principle of resumable Data TransferBefore learning about the principle of HTTP resumable upload, let's talk about the HTTP protocol. HTTP is a simple TCP-based protocol, divided into two types: request and reply. A request protocol is a protocol

1. 31-byte PHP random display Avatar 2. $ Url = 'pic ';// Image address, with relative path $ Files = array ();If ($ handle = opendir ("$ URL ")){While (false! ==( $ File = readdir ($ handle ))){If ($ file! = "." & $ File! = ".."){If (substr (

CopyCode The Code is as follows: Header ("Content-Type: image/JPEG "); Function read_url ($ Str) { $ File = fopen ($ STR, "R "); While (! Feof ($ file )) { $ Result. = fgets ($ file, 9999 ); } Fclose ($ file ); Return $ result; } Function save_

The following figure shows that the interference code is not enabled. The following is the class code CopyCode The Code is as follows: /*************************************** ********* // File: imagecode // Done: dynamic verification code

Http://www.cnblogs.com/TankXiao/archive/2012/02/13/2342672.html   The development technology of today's web programs is truly a battle, ASP. NET, PHP, JSP, Perl, Ajax, and so on. Regardless of the future development of web technology, it is very

Generate verification Image 1. Image Generation class Public class encryptimage { Public String srand = ""; Public color getrandcolor (int fc, int BC) {// obtain a random color from a given rangeRandom random = new random ();If (FC> 255)Fc = 255;If (

The development technology of today's web programs is truly a battle, ASP. NET, PHP, JSP, Perl, Ajax, and so on. Regardless of the future development of web technology, it is very important to understand the basic protocols for communication between

The development technology of today's web programs is truly a battle, ASP. NET, PHP, JSP, Perl, Ajax, and so on. Regardless of the future development of web technology, it is very important to understand the basic protocols for communication between

The webpage cache is controlled by the cache-control in the HTTP message header. common values include private, no-cache, Max-age, must-revalidate, etc. The default value is private http://www.jb51.net/article/34017.htm. The function of browser

Let's complete the previously disassembled functions first!1. Transparent layer (display and hide)The key is to set the following styles at the same time to make the mainstream browsers realistic and transparent. Filter = 'Alpha (Opacity = 50

Header ()Is used to send raw HTTPHeaders. See the HTTP/1.1 specification for more information on HTTPHeaders. Example 1:Copy codeThe Code is as follows: Header ("Location: http://www.jb51.net ";);Exit; // after each redirection, you must add "exit"

Write a verification code class in PHP and encapsulate it. Class Name: validationcode. class. phpThe Code is as follows: Copy codeThe Code is as follows: Class ValidationCode { Private $ width; Private $ height; Private $ codeNum; Private $ image; /

The function of browser review is divided into the following situations:(1) open a new windowIf the values are private, no-cache, and must-revalidate, the server will be accessed again when a new window is opened.If the max-age value is specified,

Common http header settings for php header Functions This article mainly introduces the common http header settings of php header functions. This article provides code examples. The Code contains detailed comments. For more information, see ?

Php converts an image file to a binary output, This example describes how php converts an image file to a binary output. Share it with you for your reference. The specific implementation method is as follows: Header ("Content-type: image/jpeg"); $

First code: less codeUse regular expressions to obtain the real address of Baidu online storage files to Achieve straight-chain effect. Save the following code as downbd. phpCopy codeThe Code is as follows: $ Canshu = $ _ SERVER ["QUERY_STRING"];If

Php implements 301 redirection jump instance code and 301 redirection In php, the 301 redirection implementation method is very simple. We only need to simply use the header to send the 301 status code and then use the header to jump. The effect is

Note: 1. the compressed files are cached on the server, and the re-access reduces the re-compression time to reduce the CPU usage. 2. You can set the Client File Cache Time to reduce the number of re-requests by more than 85%. 3. Because the image

For example, a blog display window Copy codeThe Code is as follows: /*************************************** ******* * Filename: img. php * Author: freemouse * Web: www.cnphp.info * Email: freemouse1981@gmail.com * Date: 2010/12/27 * Usage: * * ***