nfc codes

You can use PHP to generate a QR code. With the advancement of science and technology, the application of QR codes has become more and more extensive. today I will share with you how to use PHP to generate QR codes and how to generate a QR code with a central LOGO image. I. With the advancement of science and technology, QR code is widely used. today I will share with you how to use PHP to generate a QR cod

I. SummaryWhen a user tries to access content on a server that is running Internet information Services (IIS) through HTTP or File Transfer Protocol (FTP), IIS returns a numeric code that represents the status of the request. This status code is logged in the IIS log and may also be displayed in a Web browser or FTP client. The status code can indicate whether a specific request has succeeded, and can reveal the exact cause of the request failure.More informationThe location of the log file. By

HTTP status CodeReference URL: http://www.cnblogs.com/52php/p/5658326.htmlWhen a viewer accesses a webpage, the browser of the viewer makes a request to the server where the page is located. When a Web page is received and displayed by the browser, the server on which the page resides returns a message header (server header) that contains the HTTP status code to respond to the browser's request.The HTTP status code is in EnglishHTTP Status CodeThe following are the common HTTP status

Promotion and coupon codes in premium pricing in most companies, customer retention is an important criterion for success. Companies use a variety of strategies to retain customers. One of the most common words is a discount. In the market, customers are always looking for better products and price competition. In the world of retail companies, it is common to hear about coupon codes and promotional items o

Currently, php can generate two-dimensional codes in the following ways. Currently, php can generate two-dimensional codes in the following ways: 1. google open api $ urlToEncodebbs.lewanchina.com; generateQRf currently php can generate two-dimensional codes in the following ways: Currently, php can generate QR codes

Successful status code: 200-the server returns the webpage successfully 304-not modified Status Code of failure: 404-the requested webpage does not exist 503-the server is temporarily unavailable 500-Internal Server Error The following is not very common. Remember the above ones and you will be OK. If there is a bug, try again. Other status codes are as follows: 1xx (temporary response) The status code that indicates a temporary response and requir

HTTP 1xx-Information prompt These status codes indicate temporary responses. Before receiving a regular response, the client should be prepared to receive one or more 1xx responses. 100-continue. 101-switch protocol. 2XX-success This type of Status Code indicates that the server successfully accepts client requests. 200-OK. The client request is successful. 201-created. 202-accepted. 203-non-authoritative information. 204-NO content. 205-Re

logs and may also be displayed in a web browser or an FTP client. The status code can indicate whether the request is successful or not, and reveal the exact cause of the Request failure. Log File Location By default, IIS stores its log files in the % windirsystem32logfiles folder. Each WWW site and FTP site have a separate directory under this directory. By default, log files are created in these directories every day and named by date (for example, exyymmdd. Log ). HTTP 1xx-Information

Some invitation codes and activation codes are usually generated on the WEB. It must be unique and random. Below we will summarize some common methods for generating random codes and share one of our methods: 1. Write the code by yourself to generate a random combination of numbers and letters. Each generated random number goes to the database to check whether t

The status line contains the HTTP Version and statusCodeAnd brief description corresponding to the status code. In most cases, all Response Headers except Content-Type are optional. However, content-type is required. It describes the MIME type of the subsequent documents. Although most responses contain a document, some do not. For example, responses to head requests will never come with the document. Many status codes are actually used to identify a

successful and the server created a new resource. The attitude is not very friendly202 (accepted) the server has accepted the request but has not yet processed it.203 (non-authoritative information) the server has successfully processed the request, but the information returned may be from another source.204 (no content) the server successfully processed the request, but did not return any content.205 (reset content) the server successfully processed the request, but did not return any content.

When the Word2007 document contains field content, the field values are displayed by default, which makes the inserted field content clear. Users can choose to display field codes or display field values as needed, as described in the following steps: Step 1th, open the Word2007 document window, and click the Office Button → Word options button, as shown in Figure 2012040434. Figure 2012040434 Click the Word Options button Step 2nd, open the Word

return any content.205 (reset content) the server successfully processed the request, but did not return any content.206 (partial) The server successfully processed a partial GET request.3XX (redirected)Indicates that further action is required to complete the request. Typically, these status codes are used for redirection.Code description300 (multiple options) for requests, the server can perform a variety of operations. The server can select an act

Successful status code: 200-the server returns the webpage successfully 304-not modified Status Code of failure: 404-the requested webpage does not exist 503-the server is temporarily unavailable 500-Internal Server Error The following is not very common. Remember the above ones and you will be OK. If there is a bug, try again. Other status codes are as follows: 1xx (temporary response) The status code that indicates a temporary response and

After ZXing, one-dimensional code, two-dimensional code, and other codes are scanned separately. I have never touched on the QR code before. I recently encountered a problem: how can I determine whether the QR code is scanned by a QR code or by a QR code? after hard work for one afternoon, I can search online materials, There are two ways to solve this problem (the second method is recommended ): 1. Modify the source code (as mentioned later)2. Determ

Some common verification codes: Function Analysis:Common Verification Code features:1. display contentThe display content is generally a number or number + character, and more abnormal, the display content is random Chinese characters.For how to randomly generate Chinese characters, see:Basic Principles of gener

Four new HTTP status codes RFC 6585 have just been released. This document describes four new HTTP status codes. Is the HTTP protocol www.2cto.com still changing? Yes, the HTTP protocol has been evolving. The new status code is very useful for developing REST services or HTTP-based services, the following describes in detail the four new status codes and whether

HTTP status CodeWhen a viewer accesses a webpage, the browser of the viewer makes a request to the server where the page is located. When a Web page is received and displayed by the browser, the server on which the page resides returns a message header (server header) that contains the HTTP status code to respond to the browser's request.The HTTP status code is in EnglishHTTP Status CodeThe following are the common HTTP status codes: 200-Succ

processing request error There are 37 HTTP status codes for the RFC2616 record, plus "webdav" (RFC4918, 5842) and "additional http status codes" (RFC6585), which can reach more than 60 types.And then the egg, so many HTTP status code, in fact, there are probably only 14 kinds of, this article about the 14 kinds of status code.2XX Success This class of status code indicates, the client's

content.205 (reset content) the server successfully processed the request, but did not return any content.206 (partial) The server successfully processed a partial GET request.3XX (redirected)Indicates that further action is required to complete the request. Typically, these status codes are used for redirection.Code description300 (multiple options) for requests, the server can perform a variety of operations. The server can select an action based o