When I recently saved a link to a MySQL database using a crawler crawl, I found that when I saved the link using Json_encode, I showed the escape character in the database, which I didn't need to escape, look unclear, and take up storage space. It
The two slashes in explode indicate the two slashes which are finally edited by php_csdn1 at 2014-11-02:0. is the first slash escaped? If it is an escape, does this first parameter mean to write it as a regular expression? ------ solution -----------
I. Concepts and usageLeft Right counterLet's take a look at the concept of escape characters: through \,? To change the meaning of the letter or symbol behind it. It means to change the meaning of the letter itself.Take the "\" symbol for example,
The escape character in the Java language and the expression of the escape character in the regular syntax in the Java string.There are 14 escape characters in ASCLL:
\o
Null character (NULL)
00h/0
\ n
Line
File Path
Forward and backward slashes
A forward slash, also known as a left slash, indicates "/"; a backslash, also known as a right slash, indicating "\". The file path can be divided into absolute and relative paths:
1. absolute path
Php implements the code for handling input escape characters, and php escape character code. Php implements the code for handling input escape characters. The php escape character code first comes with a function, which is ***
When you plan to fill out an Excel table, the conventions are filled in JSON format for complex types of data. For example, the content of column D is JSON data.The JSON in the cell is as follows.{ "name":"BeJson2",
PHP implements the code that handles the input escape character, the PHP escape character code
First, a function is recently introduced in WordPress 3.6
/** * Add slashes to a string or array of strings. * * This should is used when the preparing
Java escape charactersAll escape characters and their meanings:
Escape characters
Meaning
ASCII value (decimal)
\
Bell (BEL)
007
\ B
Return to BS to move the current position to the previous column.
008
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