In mysql5.1, the following Chinese Character in utf8 encoding occupies a char.Recently, it was found that the length of the Oracle and MySQL fields is calculated differently (both are UTF-8 encoded), for example:Defined in Oracle: name varchar2 (10). The name field can contain 10 or 3 Chinese characters.Defined in MySQL: name varchar (10). The name field can cont
This article mainly introduces PHP's method of determining spam comments through the Chinese character ratio. It is a practical technique and has some reference value for PHP application development, for more information, see
This article mainly introduces PHP's method of determining spam comments through the Chinese charact
This article illustrates how PHP implements the method of judging spam comments by using Chinese character ratios. Share to everyone for your reference. The implementation methods are as follows:
First, the demand:
Recently a period of time, this kind of spam comments: a large paragraph of English characters character mixed with one or two of rare
way, the email is garbled.
Solution: In Outlook2003/XP, you can select "encoding" under the "View" menu. Then, all Chinese character encoding standards will appear in the menu. You can choose one, click Select in sequence until the email body is correctly displayed. In Foxmail, you can click "View"/encoding in the menu. The operation is similar.
If the recipient uses a non-
Summary of the methods for intercepting Chinese strings in PHP. Program 1: PHP intercepts Chinese strings. because the homepage and vTigerCRM often encounter garbled characters when intercepting Chinese strings (using substr), today we can find a better method to intercept Chinese strings: PHP method for intercepting
probably not allowed. Use NotePad to open the connected file.We can prove this: After you type "Connect" in notepad and select "Save As", you will see that "ANSI" is displayed in the last drop-down box, and Save it. When you open the connected File garbled, and then click "File"-> "Save As", you will see the last drop-down box shows "UTF-8 ", this indicates that notepad considers the text currently opened as a UTF-8-encoded text. We saved the data in the ANSI
Phpjs Chinese character regular expression summary. If we want to match Chinese characters in php and js, we only need to use regular ^ [\ x {4e00}-\ x {9fa5}] + $ u, match double byte characters (including Chinese characters): [^ x00-xff, specifically, the js version matches Chine
Although in the actual working environment, Linux does not recommend the use of Chinese, but if you have to do the Chinese display, especially for those who have just contacted Linux and the English Foundation is not very good, then this article has a certain reference value.
This article describes how to optimize the Chinese display of Linux in a Linux shell env
Display and insert new characters of Chinese character lattice information (based on HZK16 ASC16 font)
The system operates the HZK16 and ASC16 Chinese character libraries.
Each Chinese Character in the HZK16 font uses 32 bytes of
Recently, python was used to read a document containing Chinese characters, leading to garbled characters and two errors. I had no choice but to search for answers on the internet. then, I solved the problem through the help of netizens, to sum up, the following article mainly introduces how to solve the problem of Chinese character encoding in python. if you nee
Chinese characters in the Servlet from the Chinese characters in the URL parameter sectionThe encoding for Tomcat to receive data by default is Iso-8859-1. So when the parameter part of the request URL contains Chinese characters, the encoding of the character needs to be converted.enumeration req.getparameternames ();
table is set to utf8 and the query is sent through the UTF-8 encoding, you will find that the database is still garbled. The problem lies in the connection layer. The solution is to execute the following sentence before sending the query: Set names 'utf8 ';It is equivalent to the following three commands:Set character_set_client = utf8;Set character_set_results = utf8;Set character_set_connection = utf8;5. Summary(1) set the correct database encoding: MySQL and earlier versions of the
The most garbled mysql Chinese is the database encoding problem. If our database encoding is the latin1 character set, but we save the gbk directly, Chinese garbled characters may occur, below I have summarized some solutions.
View my instance first
Character Set error Solution
Problems:Mysql> update users-> Set userna
In general, MySQL does not use the Chinese character set by default during installation. If you want to use Chinese character data, there are two ways. One is to specify the use of the Chinese character set during installation, if
Background knowledge:
Simplified Chinese GB Font (1981-year order, mainland China). 7,445 characters, of which 6,773 Chinese characters, including 3,755 first-level Chinese characters, two-grade Chinese characters 3,008. 2-byte (16-bit binary) encoding is used.
Location Code: GB GB2312 stipulates that all GB charac
Conversion of a Chinese character into a unicode universal function does not rely on any library, and other user-defined functions, but the condition is that the input parameters of this file and function should be UTF-8 encoded, otherwise, function conversion is required. Conversion of a Chinese character into a unico
This article mainly introduces PHP's method of determining spam comments through the Chinese character ratio. it is a practical technique and has some reference value for PHP application development, for more information about how to use the Chinese character rate to determine spam comments, see the example in this art
This article mainly introduces PHP's method of determining spam comments through the Chinese character ratio. it is a practical technique and has some reference value for PHP application development, for more information about how to use the Chinese character rate to determine spam comments, see the example in this art
This article describes how to obtain the initials of each Chinese character field in mysql. For more information, see
Drop function if exists 'getpy'; DELIMITER; create function 'getpy' (in_string VARCHAR (65534) RETURNS mediumtext CHARSET utf8 begin declare tmp_str VARCHAR (65534) charset gbk DEFAULT ''; # truncate string. the string after each truncate is stored in this variable. The initial value is the
These two days are doing a keyword highlighting program, write a good program in the local test also run well, but a page on a pile of a bunch of garbled, don't say add bright, is simply not look! I find the wrong, find to find, found no problem in English, encountered Chinese characters are prone to problems, sometimes encountered Chinese characters will be problematic.
To sum up:
When using pattern matc
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