Ascii Value Of All Characters

Php tutorial Chinese characters match the regular expression Chinese characters match the regular expression: [u4e00-u9fa5] Commentary: Matching Chinese is really a headache, with this expression is easy to match the double-byte characters (including Chinese characters ): [^ X00-xff] Comment: Can be used to calculate the length of the string (a double-byte character length meter 2, ascii character meter 1) * / $ str = "singlepoint single point log"; if (preg_matc ...

1. Boxing, unpacking or aliases many of the introduction of C #. NET learning experience books on the introduction of the int-> Int32 is a boxing process, the reverse is the process of unpacking. This is true of many other variable types, such as short <-> int16,long <->int64. For the average programmer, it is not necessary to understand this process, because these boxes and unboxing actions can be automatically completed, do not need to write code to intervene. But we need to remember that ...

Base64 is one of the most commonly used encodings, such as the development of passing parameters, the <img/> tags in modern browsers to render pictures directly through Base64 strings, and for messages and so on.　　The BASE64 encoding is defined in RFC2045, which is defined as: Base64 content transfer encoding is designed to describe the 8-bit byte of any sequence as a form that is not easily recognized directly by the person. We know that any data is stored in binary form on the computer. One byte is 8 bits, one character is stored in the computer ...

&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Cnnic the updated Chinese domain name test system is the common wisdom of cooperation between the two sides of the four technical personnel. 　　Compatible, open, interoperable and conform to international technical standards are several important features of CNNIC domain Name System. 1) highly compatible, the global CNNIC domain Name System will also provide "Chinese domain name." ...

Earlier in this chapter discussed how to use SQL to insert data into a table. However, if you need to add many records to a table, it is inconvenient to use SQL statements to enter data. Fortunately, MySQL provides methods for bulk data entry, making it easy to add data to the table. This section, as well as the next section, describes these methods. This section describes the SQL language-level workarounds. 1, the basic syntax and syntax: LOAD DATA [LOCAL] INFILE 'file_name.txt' [REPLACE ...

The basic constituent unit of Chinese text is Chinese characters. At present, the total number of Chinese characters has more than 60,000 words. The characteristics of large number of Chinese characters, complicated shape, variant and many other characters give a series of problems to the representation, processing, transmission, exchange, input and output of Chinese characters in the computer, and also bring a lot of difficulty to character work. There are several coding schemes for Chinese character coding: 1. Gb2312-80 Code &http://www.aliyun.com/zixun/aggregation ...

The design of the URL is a very complex problem, I can't say there is a "right" solution-it is similar to other aspects of the design, there are good URL design, there are bad URL design, in the case between the two different-it is subjective. This does not mean, however, that there is no best practice for creating very good URLs. I hope I've learned some URL design best practices over the years to impress you, and I'll explain why I think using the new HTML5 JavaScript's his ...

Intermediary transaction SEO diagnosis Taobao guest Cloud host technology Hall before long with a few friends to explore how to do a large information site SEO. In fact, different project operation methods and strategies are not the same, concrete analysis of the specific situation. 　　SEO strategy is good or bad directly affect the different stages of the optimization effect. Share some of your SEO strategies here and how to do it. 　　In fact, this is also the old saying talked. One, the enemy 1. Identify your competitors and collect information on similar sites through various channels (daily traffic, Ale ...).

php tutorial generic anti-injection is mainly to filter some sql command and php post get pass over reference / we want to filter some illegal characters, so that you can prevent the basic injection, and that off the apache server installation settings method is also necessary. Administrator user name and password are taken md5 encryption, so that we can effectively prevent the injection of php. There are servers and mysql tutorials should also strengthen some security precautions. For linux server security settings: encrypted password, use "/ usr / sbin / authconf ...

AddSlashes: String added to the slash. bin2hex: binary into hexadecimal. Chop: Remove continuous blanks. Chr: returns the ordinal value of the character. chunk_split: The string is divided into small pieces. convert_cyr_string: Converts the ancient Slavonic string into another string. crypt: Encrypt the string with DES encoding. echo: output string. explode: cut the string. flush: clear the output buffer. ...