escape backslash

PHP extension text processing -- PCRE regular expression syntax 3 -- escape sequence (backslash) backlash has multiple usage. First, if it is followed by a non-alphanumeric character, it indicates that the special meaning represented by this

How to insert a backslash in MySQL, a backslash is eaten, and a backslash is escapedProblem Description:After the contents of the backslash in MySQL are put into storage, the backslash is found to be missing for no reason (as the old saying is eaten)

IntroductionIn the field of business, to customer deployment projects, three projects to be integrated together, which results in different data formats, the path of the slash and backslash caused a lot of problems.Check out this information, here

Kankan OriginalThis format is required when sending data in the background with PHP.private void Sendjson () { Initializing a custom handlerCashhandler handler = new Cashhandler (this);Request the primary address, written in the custom application,

here is a little bit of experience:For the following two reasons, using backslashes in regular expressions creates a double-conversion problem.(1), when Python handles the string itself, the backslash is used to escape the character(2), regular

The example of this article describes the solution of two times backslash escape and database class escape in thinkphp storage. Share to everyone for your reference. The specific methods are as follows: This situation occurs when the

Escape characters in the C languagein a character set, there is a class of characters that can be displayed on the display when the character is entered from the keyboard, that is, what is displayed when the input is entered. Such characters are

C escape characters in the languageIn a character set, there is a class of characters that can be displayed on the display when the character is entered from the keyboard, that is, what is displayed when the input is entered. Such characters are

Java escape characters: 1. octal escape sequence: \ + 1 to 3 digits and 5 digits; range: '\ 000 '~ '\ 100'\ 0: NULL characters2. Unicode escape characters: \ U + four hexadecimal numbers; 0 ~ 65535\ U0000: NULL Character3. Special characters:

Reference symbols protect special metacharacters and parameter extensions in the parser using 3 ways: backslash (\), single quotation mark ('), double quotation mark ("").Single and double quotes must be matched to protect special metacharacters and